Maytag dishwasher suddenly stopped working

[Amanda Ripanykhazova]

MDB9601 suddenly stopped working, and instead started humming loudly.
When I open the door, a loud grinding noise can be heard (from where i
assume the pump is at the bottom of the unit) stopping and grinding
slowly to a halt.

All on-line diagnostics seem to indicate that something is caught in
the impeller somewhere but all of them report that their units fill
and then start humming when something is caught in the impeller.
Here, if there is something jammed into the impeller, where is the
grinding sound coming from to grind to a halt?

Does anyone know anything about these units and have any idea whether
this is something caught in the impeller preventing the water filling
or something stopping the water filling preventing the unit working
with no water input? (Nothing has operated to prevent the water coming
in such as a water shut-off, and the water supply is shared with the
washing machine which still works)

 

[The Ghost In The Machine]

On Apr 26, 7:05 pm, Amanda Ripanykhazova <licensedtoqu...@gmail.com>
wrote:

MDB9601 suddenly stopped working, and instead started humming loudly.
When I open the door, a loud grinding noise can be heard (from where i
assume the pump is at the bottom of the unit) stopping and grinding
slowly to a halt.

All on-line diagnostics seem to indicate that something is caught in
the impeller somewhere but all of them report that their units fill
and then start humming  when something is caught in the impeller.
Here,   if there is something jammed into the impeller, where is the
grinding sound coming from to grind to a halt?

Does anyone know anything about these units and have any idea whether
this is something caught in the impeller preventing the water filling
or something stopping the water filling preventing the unit working
with no water input? (Nothing has operated to prevent the water coming
in such as a water shut-off, and the water supply is shared with the
washing machine which still works)

SOUNDS LIKE A CRITE CRAWLED UP IN THERE...
YOU BETTER CALL IN AN EXPERT TO HANDLE IT.
BOOWAHAHAHAHAHA!
TGITM

 

[hr(bob) hofmann@att.net]

On Apr 26, 6:14 pm, The Ghost In The Machine <proteus...@gmail.com>
wrote:

On Apr 26, 7:05 pm, Amanda Ripanykhazova <licensedtoqu...@gmail.com
wrote:





MDB9601 suddenly stopped working, and instead started humming loudly.
When I open the door, a loud grinding noise can be heard (from where i
assume the pump is at the bottom of the unit) stopping and grinding
slowly to a halt.

All on-line diagnostics seem to indicate that something is caught in
the impeller somewhere but all of them report that their units fill
and then start humming  when something is caught in the impeller.
Here,   if there is something jammed into the impeller, where is the
grinding sound coming from to grind to a halt?

Does anyone know anything about these units and have any idea whether
this is something caught in the impeller preventing the water filling
or something stopping the water filling preventing the unit working
with no water input? (Nothing has operated to prevent the water coming
in such as a water shut-off, and the water supply is shared with the
washing machine which still works)

SOUNDS LIKE A CRITE CRAWLED UP IN THERE...
YOU BETTER CALL IN AN EXPERT TO HANDLE IT.
BOOWAHAHAHAHAHA!
TGITM- Hide quoted text -

- Show quoted text -

isn't there a removable screen at the bottom that can be renmoved for
cleaning if youtake the rotating arm off?

 

[myfathersson]

On Apr 26, 10:27 pm, "hr(bob) hofm...@att.net" <hrhofm...@att.net>
wrote:

On Apr 26, 6:14 pm, The Ghost In The Machine <proteus...@gmail.com
wrote:



On Apr 26, 7:05 pm, Amanda Ripanykhazova <licensedtoqu...@gmail.com
wrote:

MDB9601 suddenly stopped working, and instead started humming loudly.
When I open the door, a loud grinding noise can be heard (from where i
assume the pump is at the bottom of the unit) stopping and grinding
slowly to a halt.

All on-line diagnostics seem to indicate that something is caught in
the impeller somewhere but all of them report that their units fill
and then start humming  when something is caught in the impeller.
Here,   if there is something jammed into the impeller, where is the
grinding sound coming from to grind to a halt?

Does anyone know anything about these units and have any idea whether
this is something caught in the impeller preventing the water filling
or something stopping the water filling preventing the unit working
with no water input? (Nothing has operated to prevent the water coming
in such as a water shut-off, and the water supply is shared with the
washing machine which still works)

SOUNDS LIKE A CRITE CRAWLED UP IN THERE...
YOU BETTER CALL IN AN EXPERT TO HANDLE IT.
BOOWAHAHAHAHAHA!
TGITM- Hide quoted text -

- Show quoted text -

isn't there a removable screen at the bottom that can be renmoved for
cleaning if youtake the rotating arm off?

not that I can see?

(and no loonies staring through screens either)

Anyone come across this problem? no water input but humming and
possibly jammed motor?

 

[myfathersson]

On Apr 26, 10:27 pm, "hr(bob) hofm...@att.net" <hrhofm...@att.net>
wrote:

On Apr 26, 6:14 pm, The Ghost In The Machine <proteus...@gmail.com
wrote:



On Apr 26, 7:05 pm, Amanda Ripanykhazova <licensedtoqu...@gmail.com
wrote:

MDB9601 suddenly stopped working, and instead started humming loudly.
When I open the door, a loud grinding noise can be heard (from where i
assume the pump is at the bottom of the unit) stopping and grinding
slowly to a halt.

All on-line diagnostics seem to indicate that something is caught in
the impeller somewhere but all of them report that their units fill
and then start humming  when something is caught in the impeller.
Here,   if there is something jammed into the impeller, where is the
grinding sound coming from to grind to a halt?

Does anyone know anything about these units and have any idea whether
this is something caught in the impeller preventing the water filling
or something stopping the water filling preventing the unit working
with no water input? (Nothing has operated to prevent the water coming
in such as a water shut-off, and the water supply is shared with the
washing machine which still works)

SOUNDS LIKE A CRITE CRAWLED UP IN THERE...
YOU BETTER CALL IN AN EXPERT TO HANDLE IT.
BOOWAHAHAHAHAHA!
TGITM- Hide quoted text -

- Show quoted text -

isn't there a removable screen at the bottom that can be renmoved for
cleaning if youtake the rotating arm off?

My old GE used to have one of thse screens where the impeller is

 

[Tony Hwang]

Amanda Ripanykhazova wrote:

MDB9601 suddenly stopped working, and instead started humming loudly.
When I open the door, a loud grinding noise can be heard (from where i
assume the pump is at the bottom of the unit) stopping and grinding
slowly to a halt.

All on-line diagnostics seem to indicate that something is caught in
the impeller somewhere but all of them report that their units fill
and then start humming when something is caught in the impeller.
Here, if there is something jammed into the impeller, where is the
grinding sound coming from to grind to a halt?

Does anyone know anything about these units and have any idea whether
this is something caught in the impeller preventing the water filling
or something stopping the water filling preventing the unit working
with no water input? (Nothing has operated to prevent the water coming
in such as a water shut-off, and the water supply is shared with the
washing machine which still works)
Hmmm,

Water inlet solenoid?

 

[Anon]

"Amanda Ripanykhazova" <licensedtoquill@gmail.com> wrote in message
news:c7221546-8bfb-4ad0-8073-b42150447782@f5g2000vby.googlegroups.com...

MDB9601 suddenly stopped working, and instead started humming loudly.
When I open the door, a loud grinding noise can be heard (from where i
assume the pump is at the bottom of the unit) stopping and grinding
slowly to a halt.

All on-line diagnostics seem to indicate that something is caught in
the impeller somewhere but all of them report that their units fill
and then start humming when something is caught in the impeller.
Here, if there is something jammed into the impeller, where is the
grinding sound coming from to grind to a halt?

Does anyone know anything about these units and have any idea whether
this is something caught in the impeller preventing the water filling
or something stopping the water filling preventing the unit working
with no water input? (Nothing has operated to prevent the water coming
in such as a water shut-off, and the water supply is shared with the
washing machine which still works)

Pump running while dry? Mine has a float sensor on the bottom, left front.
If the float sticks up, as it does occasionally, the sensor reports there is
standing water and turns on the pump. Dry pump made a grinding/growling
noise the entire time.

It might not be relevant, but worth a try to check.

Scott
Dunedin

 

[Amanda Ripanykhazova]

On Apr 27, 1:52 am, Tony Hwang <drago...@shaw.ca> wrote:

Amanda Ripanykhazova wrote:
MDB9601 suddenly stopped working, and instead started humming loudly.
When I open the door, a loud grinding noise can be heard (from where i
assume the pump is at the bottom of the unit) stopping and grinding
slowly to a halt.

All on-line diagnostics seem to indicate that something is caught in
the impeller somewhere but all of them report that their units fill
and then start humming  when something is caught in the impeller.
Here,   if there is something jammed into the impeller, where is the
grinding sound coming from to grind to a halt?

Does anyone know anything about these units and have any idea whether
this is something caught in the impeller preventing the water filling
or something stopping the water filling preventing the unit working
with no water input? (Nothing has operated to prevent the water coming
in such as a water shut-off, and the water supply is shared with the
washing machine which still works)

Hmmm,
Water inlet solenoid?

Firstly, the float isnt stuck 'cos when I opened the door, that was
the first thing I could see so I THINK I checked it. And with no water
coming in, the water input valve was the first thing I thought of,
especially as there are a few places on line where this is advised.

My question is whether this is the whole problem and the grinding
sound is just a dry pump winding down when it has been started
(someone has pressed the start button, causing the hum?) with no water
coming in?

Or does some one know whether there are any electric sensors which
stop water coming into this unit with (for example) a blown pump or
some other major problem? The pump doesnt look like an insuperable
problem but I dont know what other technology is built into this unit
and Maytag doesnt have any technical support AND I havent made any
progress with finding out where the factory is to ask this question

Thanks for the help guys!

 

On Mon, 30 Apr 2012 06:54:01 -0700 (PDT), Amanda Ripanykhazova
<licensedtoquill@gmail.com> wrote:

On Apr 27, 1:52 am, Tony Hwang <drago...@shaw.ca> wrote:
Amanda Ripanykhazova wrote:
MDB9601 suddenly stopped working, and instead started humming loudly.
When I open the door, a loud grinding noise can be heard (from where i
assume the pump is at the bottom of the unit) stopping and grinding
slowly to a halt.

All on-line diagnostics seem to indicate that something is caught in
the impeller somewhere but all of them report that their units fill
and then start humming  when something is caught in the impeller.
Here,   if there is something jammed into the impeller, where is the
grinding sound coming from to grind to a halt?

Does anyone know anything about these units and have any idea whether
this is something caught in the impeller preventing the water filling
or something stopping the water filling preventing the unit working
with no water input? (Nothing has operated to prevent the water coming
in such as a water shut-off, and the water supply is shared with the
washing machine which still works)

Hmmm,
Water inlet solenoid?

Firstly, the float isnt stuck 'cos when I opened the door, that was
the first thing I could see so I THINK I checked it. And with no water
coming in, the water input valve was the first thing I thought of,
especially as there are a few places on line where this is advised.

My question is whether this is the whole problem and the grinding
sound is just a dry pump winding down when it has been started
(someone has pressed the start button, causing the hum?) with no water
coming in?

Or does some one know whether there are any electric sensors which
stop water coming into this unit with (for example) a blown pump or
some other major problem? The pump doesnt look like an insuperable
problem but I dont know what other technology is built into this unit
and Maytag doesnt have any technical support AND I havent made any
progress with finding out where the factory is to ask this question

Thanks for the help guys!
Don't write off this suggestion. I had a similar problem with a

dishwasher years ago. The 'grinding sound' could be caused by a
defective water inlet solenoid. Instead of opening properly, it just
buzzed.

And don't disregard the possibility of a defective water level switch.
The float switch is in series with the fill valve.

Googling 'MDB9601 parts' brings up a wealth of information, including
the wiring diagram and assembly drawing of the main pump area. This
model has two pumps - the main wash pump which has a food grinder in
it's shaft (a possible source of the noise), as well as the drain
pump.

PlainBill

 

[Amanda Ripanykhazova]

On Apr 30, 4:38 pm, PlainB...@yawhoo.com wrote:

On Mon, 30 Apr 2012 06:54:01 -0700 (PDT), Amanda Ripanykhazova









licensedtoqu...@gmail.com> wrote:
On Apr 27, 1:52 am, Tony Hwang <drago...@shaw.ca> wrote:
Amanda Ripanykhazova wrote:
MDB9601 suddenly stopped working, and instead started humming loudly..
When I open the door, a loud grinding noise can be heard (from where i
assume the pump is at the bottom of the unit) stopping and grinding
slowly to a halt.

All on-line diagnostics seem to indicate that something is caught in
the impeller somewhere but all of them report that their units fill
and then start humming  when something is caught in the impeller.
Here,   if there is something jammed into the impeller, where is the
grinding sound coming from to grind to a halt?

Does anyone know anything about these units and have any idea whether
this is something caught in the impeller preventing the water filling
or something stopping the water filling preventing the unit working
with no water input? (Nothing has operated to prevent the water coming
in such as a water shut-off, and the water supply is shared with the
washing machine which still works)

Hmmm,
Water inlet solenoid?

Firstly, the float isnt stuck 'cos when I opened the door, that was
the first thing I could see so I THINK I checked it. And with no water
coming in, the water input valve was the first thing I thought of,
especially as there are a few places on line where this is advised.

My question is whether this is the whole problem and the grinding
sound is just a dry pump winding down when it has been started
(someone has pressed the start button, causing the hum?) with no water
coming in?

Or does some one know whether there are any electric sensors which
stop water coming into this unit with (for example) a blown pump or
some other major problem?  The pump doesnt look like an insuperable
problem but I dont know what other technology is built into this unit
and Maytag doesnt have any technical support AND I havent made any
progress with finding out where the factory is to ask this question

Thanks for the help guys!

Don't write off this suggestion.  I had a similar problem with a
dishwasher years ago.  The 'grinding sound' could be caused by a
defective water inlet solenoid.  Instead of opening properly, it just
buzzed.

And don't disregard the possibility of a defective water level switch.
The float switch is in series with the fill valve.

Googling 'MDB9601  parts' brings up a wealth of information, including
the wiring diagram and assembly drawing of the main pump area.   This
model has two pumps -  the main wash pump which has a food grinder in
it's shaft (a possible source of the noise), as well as the drain
pump.

PlainBill

I hadnt written anything off, in fact I was assuming that it was the
water valve and was wondering how i can replace it (even though it is
probably just blocked up with dirt from the pipes) in situ. I will
have to buy one as the local technicians like to come to any apartment
twice, once to diagnose when you tel them to bring a valve because
you need a valve and then again to bring the valve.

I had also tried to clean out the impeller mechanism but didnt get
very far as the round pump cover under the removable arm seems to be
exceptionally difficult to take out.

 

On Mon, 30 Apr 2012 16:10:56 -0700 (PDT), Amanda Ripanykhazova
<licensedtoquill@gmail.com> wrote:

On Apr 30, 4:38 pm, PlainB...@yawhoo.com wrote:
On Mon, 30 Apr 2012 06:54:01 -0700 (PDT), Amanda Ripanykhazova









licensedtoqu...@gmail.com> wrote:
On Apr 27, 1:52 am, Tony Hwang <drago...@shaw.ca> wrote:
Amanda Ripanykhazova wrote:
MDB9601 suddenly stopped working, and instead started humming loudly.
When I open the door, a loud grinding noise can be heard (from where i
assume the pump is at the bottom of the unit) stopping and grinding
slowly to a halt.

All on-line diagnostics seem to indicate that something is caught in
the impeller somewhere but all of them report that their units fill
and then start humming  when something is caught in the impeller.
Here,   if there is something jammed into the impeller, where is the
grinding sound coming from to grind to a halt?

Does anyone know anything about these units and have any idea whether
this is something caught in the impeller preventing the water filling
or something stopping the water filling preventing the unit working
with no water input? (Nothing has operated to prevent the water coming
in such as a water shut-off, and the water supply is shared with the
washing machine which still works)

Hmmm,
Water inlet solenoid?

Firstly, the float isnt stuck 'cos when I opened the door, that was
the first thing I could see so I THINK I checked it. And with no water
coming in, the water input valve was the first thing I thought of,
especially as there are a few places on line where this is advised.

My question is whether this is the whole problem and the grinding
sound is just a dry pump winding down when it has been started
(someone has pressed the start button, causing the hum?) with no water
coming in?

Or does some one know whether there are any electric sensors which
stop water coming into this unit with (for example) a blown pump or
some other major problem?  The pump doesnt look like an insuperable
problem but I dont know what other technology is built into this unit
and Maytag doesnt have any technical support AND I havent made any
progress with finding out where the factory is to ask this question

Thanks for the help guys!

Don't write off this suggestion.  I had a similar problem with a
dishwasher years ago.  The 'grinding sound' could be caused by a
defective water inlet solenoid.  Instead of opening properly, it just
buzzed.

And don't disregard the possibility of a defective water level switch.
The float switch is in series with the fill valve.

Googling 'MDB9601  parts' brings up a wealth of information, including
the wiring diagram and assembly drawing of the main pump area.   This
model has two pumps -  the main wash pump which has a food grinder in
it's shaft (a possible source of the noise), as well as the drain
pump.

PlainBill

I hadnt written anything off, in fact I was assuming that it was the
water valve and was wondering how i can replace it (even though it is
probably just blocked up with dirt from the pipes) in situ. I will
have to buy one as the local technicians like to come to any apartment
twice, once to diagnose when you tel them to bring a valve because
you need a valve and then again to bring the valve.

I had also tried to clean out the impeller mechanism but didnt get
very far as the round pump cover under the removable arm seems to be
exceptionally difficult to take out.
Whoo!! Lots of stuff. First, I forgot a link to the wiring /

assembly drawing
http://www.appliancepartspros.com/partsearch/model.aspx?model_id=5170566&diagram_id=28468795#d28468795

You could simply replace the valve, but I prefer troubleshooting to at
least establish that power (and water) is getting to the valve (P/N
6-920534). Prices for this are all over the map - Appliance Depot
lists it at $19, others have it as high as $59. They are also
available on eBay.

Tearing down the main pump assembly is a pain. The lower rotating arm
must be removed, then there are a number of Torx screws that have to
be removed. As I recall there are about three layers to it.

PlainBill

 

[Amanda Ripanykhazova]

On May 1, 3:26 pm, PlainB...@yawhoo.com wrote:

On Mon, 30 Apr 2012 16:10:56 -0700 (PDT), Amanda Ripanykhazova









licensedtoqu...@gmail.com> wrote:
On Apr 30, 4:38 pm, PlainB...@yawhoo.com wrote:
On Mon, 30 Apr 2012 06:54:01 -0700 (PDT), Amanda Ripanykhazova

licensedtoqu...@gmail.com> wrote:
On Apr 27, 1:52 am, Tony Hwang <drago...@shaw.ca> wrote:
Amanda Ripanykhazova wrote:
MDB9601 suddenly stopped working, and instead started humming loudly.
When I open the door, a loud grinding noise can be heard (from where i
assume the pump is at the bottom of the unit) stopping and grinding
slowly to a halt.

All on-line diagnostics seem to indicate that something is caught in
the impeller somewhere but all of them report that their units fill
and then start humming  when something is caught in the impeller.
Here,   if there is something jammed into the impeller, where is the
grinding sound coming from to grind to a halt?

Does anyone know anything about these units and have any idea whether
this is something caught in the impeller preventing the water filling
or something stopping the water filling preventing the unit working
with no water input? (Nothing has operated to prevent the water coming
in such as a water shut-off, and the water supply is shared with the
washing machine which still works)

Hmmm,
Water inlet solenoid?

Firstly, the float isnt stuck 'cos when I opened the door, that was
the first thing I could see so I THINK I checked it. And with no water
coming in, the water input valve was the first thing I thought of,
especially as there are a few places on line where this is advised.

My question is whether this is the whole problem and the grinding
sound is just a dry pump winding down when it has been started
(someone has pressed the start button, causing the hum?) with no water
coming in?

Or does some one know whether there are any electric sensors which
stop water coming into this unit with (for example) a blown pump or
some other major problem?  The pump doesnt look like an insuperable
problem but I dont know what other technology is built into this unit
and Maytag doesnt have any technical support AND I havent made any
progress with finding out where the factory is to ask this question

Thanks for the help guys!

Don't write off this suggestion.  I had a similar problem with a
dishwasher years ago.  The 'grinding sound' could be caused by a
defective water inlet solenoid.  Instead of opening properly, it just
buzzed.

And don't disregard the possibility of a defective water level switch.
The float switch is in series with the fill valve.

Googling 'MDB9601  parts' brings up a wealth of information, including
the wiring diagram and assembly drawing of the main pump area.   This
model has two pumps -  the main wash pump which has a food grinder in
it's shaft (a possible source of the noise), as well as the drain
pump.

PlainBill

I hadnt written anything off, in fact I was assuming that it was the
water valve and was wondering how i can replace it (even though it is
probably  just blocked up with dirt from the pipes) in situ.  I will
have to buy one as the local technicians like to come to any apartment
twice, once to diagnose when you tel them to bring a valve because
you need a valve and then again to bring the valve.

I had also tried to clean out the impeller mechanism but didnt get
very far as the round pump cover under the removable arm seems to be
exceptionally difficult to take out.

Whoo!!  Lots of stuff.  First, I forgot a link to the wiring /
assembly drawinghttp://www.appliancepartspros.com/partsearch/model.aspx?model_id=5170...

You could simply replace the valve, but I prefer troubleshooting to at
least establish that power (and water) is getting to the valve (P/N
6-920534).  Prices for this are all over the map - Appliance Depot
lists it at $19, others have it as high as $59.  They are also
available on eBay.

Tearing down the main pump assembly is a pain.  The lower rotating arm
must be removed, then there are a number of Torx screws that have to
be removed.  As I recall there are about three layers to it.

PlainBill

Luckily I found one for ten bucks including shipping! I agree, the
dissembly of the pump area is a real pain as the mid and upper spray
arm seems to prevent the various bits being easily taken off to clean
or inspect: Possibly the solution is to use some sort of dishwasher
cleaner to get rid of whatever is in the impeller mechanism? On
looking at it, it does look filthy but not with anything which would
block it. Unlike GE dishwashers, there seem to be various screens to
prevent that sort of thing blocking the impeller?.

 

On Thu, 3 May 2012 07:16:46 -0700 (PDT), Amanda Ripanykhazova
<licensedtoquill@gmail.com> wrote:

On May 1, 3:26 pm, PlainB...@yawhoo.com wrote:
On Mon, 30 Apr 2012 16:10:56 -0700 (PDT), Amanda Ripanykhazova









licensedtoqu...@gmail.com> wrote:
On Apr 30, 4:38 pm, PlainB...@yawhoo.com wrote:
On Mon, 30 Apr 2012 06:54:01 -0700 (PDT), Amanda Ripanykhazova

licensedtoqu...@gmail.com> wrote:
On Apr 27, 1:52 am, Tony Hwang <drago...@shaw.ca> wrote:
Amanda Ripanykhazova wrote:
MDB9601 suddenly stopped working, and instead started humming loudly.
When I open the door, a loud grinding noise can be heard (from where i
assume the pump is at the bottom of the unit) stopping and grinding
slowly to a halt.

All on-line diagnostics seem to indicate that something is caught in
the impeller somewhere but all of them report that their units fill
and then start humming  when something is caught in the impeller.
Here,   if there is something jammed into the impeller, where is the
grinding sound coming from to grind to a halt?

Does anyone know anything about these units and have any idea whether
this is something caught in the impeller preventing the water filling
or something stopping the water filling preventing the unit working
with no water input? (Nothing has operated to prevent the water coming
in such as a water shut-off, and the water supply is shared with the
washing machine which still works)

Hmmm,
Water inlet solenoid?

Firstly, the float isnt stuck 'cos when I opened the door, that was
the first thing I could see so I THINK I checked it. And with no water
coming in, the water input valve was the first thing I thought of,
especially as there are a few places on line where this is advised.

My question is whether this is the whole problem and the grinding
sound is just a dry pump winding down when it has been started
(someone has pressed the start button, causing the hum?) with no water
coming in?

Or does some one know whether there are any electric sensors which
stop water coming into this unit with (for example) a blown pump or
some other major problem?  The pump doesnt look like an insuperable
problem but I dont know what other technology is built into this unit
and Maytag doesnt have any technical support AND I havent made any
progress with finding out where the factory is to ask this question

Thanks for the help guys!

Don't write off this suggestion.  I had a similar problem with a
dishwasher years ago.  The 'grinding sound' could be caused by a
defective water inlet solenoid.  Instead of opening properly, it just
buzzed.

And don't disregard the possibility of a defective water level switch.
The float switch is in series with the fill valve.

Googling 'MDB9601  parts' brings up a wealth of information, including
the wiring diagram and assembly drawing of the main pump area.   This
model has two pumps -  the main wash pump which has a food grinder in
it's shaft (a possible source of the noise), as well as the drain
pump.

PlainBill

I hadnt written anything off, in fact I was assuming that it was the
water valve and was wondering how i can replace it (even though it is
probably  just blocked up with dirt from the pipes) in situ.  I will
have to buy one as the local technicians like to come to any apartment
twice, once to diagnose when you tel them to bring a valve because
you need a valve and then again to bring the valve.

I had also tried to clean out the impeller mechanism but didnt get
very far as the round pump cover under the removable arm seems to be
exceptionally difficult to take out.

Whoo!!  Lots of stuff.  First, I forgot a link to the wiring /
assembly drawinghttp://www.appliancepartspros.com/partsearch/model.aspx?model_id=5170...

You could simply replace the valve, but I prefer troubleshooting to at
least establish that power (and water) is getting to the valve (P/N
6-920534).  Prices for this are all over the map - Appliance Depot
lists it at $19, others have it as high as $59.  They are also
available on eBay.

Tearing down the main pump assembly is a pain.  The lower rotating arm
must be removed, then there are a number of Torx screws that have to
be removed.  As I recall there are about three layers to it.

PlainBill

Luckily I found one for ten bucks including shipping! I agree, the
dissembly of the pump area is a real pain as the mid and upper spray
arm seems to prevent the various bits being easily taken off to clean
or inspect: Possibly the solution is to use some sort of dishwasher
cleaner to get rid of whatever is in the impeller mechanism? On
looking at it, it does look filthy but not with anything which would
block it. Unlike GE dishwashers, there seem to be various screens to
prevent that sort of thing blocking the impeller?.
The assembly of yours looks similar (if not identical) to mine. I

recently had to tear mine down to remove an accumulation of 'crud'.
The disassembly goes like this:
1. Remove the lower tray (the upper one also if you desire additional
clearance).
2. Remove the plastic nut that holds the lower spray arm in place,
remove the lower spray arm.
3. Remove three torx screws (T-15 IIRC) that hold the upper filter
plate in place and remove it.
4. Remove the (6?) torx screws that hold the discharge housing in
place and remove it (it is a snap fit into the water distribution
assembly).
5. Remove the screw holing the impeller in place and remove it.
6. Remove the screws holding the pump filter in place and remove it.
7. Examine the chopper that is just below the screen on the pump
filter.

Reassembly is the reverse of disassembly.

I live in an area that has very hard water. Residue had clogged many
passages, in addition the screen in the pump filter was partially
clogged with food particles.

A common suggestion is to add 1 - 2 cups of white vinegar to the
dishwasher to remove any deposits. That did not work well for me.

PlainBill

 

[Amanda Ripanykhazova]

On Apr 30, 4:38 pm, PlainB...@yawhoo.com wrote:

On Mon, 30 Apr 2012 06:54:01 -0700 (PDT), Amanda Ripanykhazova









licensedtoqu...@gmail.com> wrote:
On Apr 27, 1:52 am, Tony Hwang <drago...@shaw.ca> wrote:
Amanda Ripanykhazova wrote:
MDB9601 suddenly stopped working, and instead started humming loudly..
When I open the door, a loud grinding noise can be heard (from where i
assume the pump is at the bottom of the unit) stopping and grinding
slowly to a halt.

All on-line diagnostics seem to indicate that something is caught in
the impeller somewhere but all of them report that their units fill
and then start humming  when something is caught in the impeller.
Here,   if there is something jammed into the impeller, where is the
grinding sound coming from to grind to a halt?

Does anyone know anything about these units and have any idea whether
this is something caught in the impeller preventing the water filling
or something stopping the water filling preventing the unit working
with no water input? (Nothing has operated to prevent the water coming
in such as a water shut-off, and the water supply is shared with the
washing machine which still works)

Hmmm,
Water inlet solenoid?

Firstly, the float isnt stuck 'cos when I opened the door, that was
the first thing I could see so I THINK I checked it. And with no water
coming in, the water input valve was the first thing I thought of,
especially as there are a few places on line where this is advised.

My question is whether this is the whole problem and the grinding
sound is just a dry pump winding down when it has been started
(someone has pressed the start button, causing the hum?) with no water
coming in?

Or does some one know whether there are any electric sensors which
stop water coming into this unit with (for example) a blown pump or
some other major problem?  The pump doesnt look like an insuperable
problem but I dont know what other technology is built into this unit
and Maytag doesnt have any technical support AND I havent made any
progress with finding out where the factory is to ask this question

Thanks for the help guys!

Don't write off this suggestion.  I had a similar problem with a
dishwasher years ago.  The 'grinding sound' could be caused by a
defective water inlet solenoid.  Instead of opening properly, it just
buzzed.

And don't disregard the possibility of a defective water level switch.
The float switch is in series with the fill valve.

Googling 'MDB9601  parts' brings up a wealth of information, including
the wiring diagram and assembly drawing of the main pump area.   This
model has two pumps -  the main wash pump which has a food grinder in
it's shaft (a possible source of the noise), as well as the drain
pump.

PlainBill

BTW Did you manage to get the valve changed without taking the whole
dishwasher out and turning it on its side? (I seem to remember there
was a problem installing this dishwasher but I cant remember what it
was. I also remember wondering while I was watching it why it wasnt
just the five minute install job which it was supposed to be!)

 

On Thu, 3 May 2012 20:19:51 -0700 (PDT), Amanda Ripanykhazova
<licensedtoquill@gmail.com> wrote:

On Apr 30, 4:38 pm, PlainB...@yawhoo.com wrote:
On Mon, 30 Apr 2012 06:54:01 -0700 (PDT), Amanda Ripanykhazova









licensedtoqu...@gmail.com> wrote:
On Apr 27, 1:52 am, Tony Hwang <drago...@shaw.ca> wrote:
Amanda Ripanykhazova wrote:
MDB9601 suddenly stopped working, and instead started humming loudly.
When I open the door, a loud grinding noise can be heard (from where i
assume the pump is at the bottom of the unit) stopping and grinding
slowly to a halt.

All on-line diagnostics seem to indicate that something is caught in
the impeller somewhere but all of them report that their units fill
and then start humming  when something is caught in the impeller.
Here,   if there is something jammed into the impeller, where is the
grinding sound coming from to grind to a halt?

Does anyone know anything about these units and have any idea whether
this is something caught in the impeller preventing the water filling
or something stopping the water filling preventing the unit working
with no water input? (Nothing has operated to prevent the water coming
in such as a water shut-off, and the water supply is shared with the
washing machine which still works)

Hmmm,
Water inlet solenoid?

Firstly, the float isnt stuck 'cos when I opened the door, that was
the first thing I could see so I THINK I checked it. And with no water
coming in, the water input valve was the first thing I thought of,
especially as there are a few places on line where this is advised.

My question is whether this is the whole problem and the grinding
sound is just a dry pump winding down when it has been started
(someone has pressed the start button, causing the hum?) with no water
coming in?

Or does some one know whether there are any electric sensors which
stop water coming into this unit with (for example) a blown pump or
some other major problem?  The pump doesnt look like an insuperable
problem but I dont know what other technology is built into this unit
and Maytag doesnt have any technical support AND I havent made any
progress with finding out where the factory is to ask this question

Thanks for the help guys!

Don't write off this suggestion.  I had a similar problem with a
dishwasher years ago.  The 'grinding sound' could be caused by a
defective water inlet solenoid.  Instead of opening properly, it just
buzzed.

And don't disregard the possibility of a defective water level switch.
The float switch is in series with the fill valve.

Googling 'MDB9601  parts' brings up a wealth of information, including
the wiring diagram and assembly drawing of the main pump area.   This
model has two pumps -  the main wash pump which has a food grinder in
it's shaft (a possible source of the noise), as well as the drain
pump.

PlainBill

BTW Did you manage to get the valve changed without taking the whole
dishwasher out and turning it on its side? (I seem to remember there
was a problem installing this dishwasher but I cant remember what it
was. I also remember wondering while I was watching it why it wasnt
just the five minute install job which it was supposed to be!)
I've never had to replace the fill valve on this dishwasher, but I

don't think it's possible to do it without pulling it out. It would
require a major contortionist to do it.

PlainBill

 

[Amanda Ripanykhazova]

On May 3, 3:27 pm, PlainB...@yawhoo.com wrote:

On Thu, 3 May 2012 07:16:46 -0700 (PDT), Amanda Ripanykhazova









licensedtoqu...@gmail.com> wrote:
On May 1, 3:26 pm, PlainB...@yawhoo.com wrote:
On Mon, 30 Apr 2012 16:10:56 -0700 (PDT), Amanda Ripanykhazova

licensedtoqu...@gmail.com> wrote:
On Apr 30, 4:38 pm, PlainB...@yawhoo.com wrote:
On Mon, 30 Apr 2012 06:54:01 -0700 (PDT), Amanda Ripanykhazova

licensedtoqu...@gmail.com> wrote:
On Apr 27, 1:52 am, Tony Hwang <drago...@shaw.ca> wrote:
Amanda Ripanykhazova wrote:
MDB9601 suddenly stopped working, and instead started humming loudly.
When I open the door, a loud grinding noise can be heard (from where i
assume the pump is at the bottom of the unit) stopping and grinding
slowly to a halt.

All on-line diagnostics seem to indicate that something is caught in
the impeller somewhere but all of them report that their units fill
and then start humming  when something is caught in the impeller.
Here,   if there is something jammed into the impeller, where is the
grinding sound coming from to grind to a halt?

Does anyone know anything about these units and have any idea whether
this is something caught in the impeller preventing the water filling
or something stopping the water filling preventing the unit working
with no water input? (Nothing has operated to prevent the water coming
in such as a water shut-off, and the water supply is shared with the
washing machine which still works)

Hmmm,
Water inlet solenoid?

Firstly, the float isnt stuck 'cos when I opened the door, that was
the first thing I could see so I THINK I checked it. And with no water
coming in, the water input valve was the first thing I thought of,
especially as there are a few places on line where this is advised..

My question is whether this is the whole problem and the grinding
sound is just a dry pump winding down when it has been started
(someone has pressed the start button, causing the hum?) with no water
coming in?

Or does some one know whether there are any electric sensors which
stop water coming into this unit with (for example) a blown pump or
some other major problem?  The pump doesnt look like an insuperable
problem but I dont know what other technology is built into this unit
and Maytag doesnt have any technical support AND I havent made any
progress with finding out where the factory is to ask this question

Thanks for the help guys!

Don't write off this suggestion.  I had a similar problem with a
dishwasher years ago.  The 'grinding sound' could be caused by a
defective water inlet solenoid.  Instead of opening properly, it just
buzzed.

And don't disregard the possibility of a defective water level switch.
The float switch is in series with the fill valve.

Googling 'MDB9601  parts' brings up a wealth of information, including
the wiring diagram and assembly drawing of the main pump area.   This
model has two pumps -  the main wash pump which has a food grinder in
it's shaft (a possible source of the noise), as well as the drain
pump.

PlainBill

I hadnt written anything off, in fact I was assuming that it was the
water valve and was wondering how i can replace it (even though it is
probably  just blocked up with dirt from the pipes) in situ.  I will
have to buy one as the local technicians like to come to any apartment
twice, once to diagnose when you tel them to bring a valve because
you need a valve and then again to bring the valve.

I had also tried to clean out the impeller mechanism but didnt get
very far as the round pump cover under the removable arm seems to be
exceptionally difficult to take out.

Whoo!!  Lots of stuff.  First, I forgot a link to the wiring /
assembly drawinghttp://www.appliancepartspros.com/partsearch/model.aspx?model_id=5170...

You could simply replace the valve, but I prefer troubleshooting to at
least establish that power (and water) is getting to the valve (P/N
6-920534).  Prices for this are all over the map - Appliance Depot
lists it at $19, others have it as high as $59.  They are also
available on eBay.

Tearing down the main pump assembly is a pain.  The lower rotating arm
must be removed, then there are a number of Torx screws that have to
be removed.  As I recall there are about three layers to it.

PlainBill

Luckily I found one for ten bucks including shipping!  I agree, the
dissembly of the pump area is a real pain as the mid and upper spray
arm seems to prevent the various bits being easily taken off to clean
or inspect: Possibly the solution is to use some sort of dishwasher
cleaner to get rid of whatever is in the impeller mechanism?  On
looking at it, it does look filthy but not with anything which would
block it. Unlike GE dishwashers, there seem to be various screens to
prevent that  sort of thing blocking the impeller?.

The assembly of yours looks similar (if not identical) to mine.  I
recently had to tear mine down to remove an accumulation of 'crud'.
The disassembly goes like this:
1. Remove the lower tray (the upper one also if you desire additional
clearance).
2. Remove the plastic nut that holds the lower spray arm in place,
remove the lower spray arm.
3. Remove three torx screws (T-15 IIRC) that hold the upper filter
plate in place and remove it.
4. Remove the (6?) torx screws that hold the discharge housing in
place and remove it (it is a snap fit into the water distribution
assembly).
5. Remove the screw holing the impeller in place and remove it.
6. Remove the screws holding the pump filter in place and remove it.
7. Examine the chopper that is just below the screen on the pump
filter.

Reassembly is the reverse of disassembly.

I live in an area that has very hard water.  Residue had clogged many
passages, in addition the screen in the pump filter was partially
clogged with food particles.

A common suggestion is to add 1 - 2 cups of white vinegar to the
dishwasher to remove any deposits.  That did not work well for me.

PlainBill

The problem I had was with the second part of stage 4. I couldnt get
the covers off around the upper spray arms at the rear.

(yes, there is lots of crud in there)

 

On Sat, 5 May 2012 16:23:03 -0700 (PDT), Amanda Ripanykhazova
<licensedtoquill@gmail.com> wrote:

On May 3, 3:27 pm, PlainB...@yawhoo.com wrote:
On Thu, 3 May 2012 07:16:46 -0700 (PDT), Amanda Ripanykhazova









licensedtoqu...@gmail.com> wrote:
On May 1, 3:26 pm, PlainB...@yawhoo.com wrote:
On Mon, 30 Apr 2012 16:10:56 -0700 (PDT), Amanda Ripanykhazova

licensedtoqu...@gmail.com> wrote:
On Apr 30, 4:38 pm, PlainB...@yawhoo.com wrote:
On Mon, 30 Apr 2012 06:54:01 -0700 (PDT), Amanda Ripanykhazova

licensedtoqu...@gmail.com> wrote:
On Apr 27, 1:52 am, Tony Hwang <drago...@shaw.ca> wrote:
Amanda Ripanykhazova wrote:
MDB9601 suddenly stopped working, and instead started humming loudly.
When I open the door, a loud grinding noise can be heard (from where i
assume the pump is at the bottom of the unit) stopping and grinding
slowly to a halt.

All on-line diagnostics seem to indicate that something is caught in
the impeller somewhere but all of them report that their units fill
and then start humming  when something is caught in the impeller.
Here,   if there is something jammed into the impeller, where is the
grinding sound coming from to grind to a halt?

Does anyone know anything about these units and have any idea whether
this is something caught in the impeller preventing the water filling
or something stopping the water filling preventing the unit working
with no water input? (Nothing has operated to prevent the water coming
in such as a water shut-off, and the water supply is shared with the
washing machine which still works)

Hmmm,
Water inlet solenoid?

Firstly, the float isnt stuck 'cos when I opened the door, that was
the first thing I could see so I THINK I checked it. And with no water
coming in, the water input valve was the first thing I thought of,
especially as there are a few places on line where this is advised.

My question is whether this is the whole problem and the grinding
sound is just a dry pump winding down when it has been started
(someone has pressed the start button, causing the hum?) with no water
coming in?

Or does some one know whether there are any electric sensors which
stop water coming into this unit with (for example) a blown pump or
some other major problem?  The pump doesnt look like an insuperable
problem but I dont know what other technology is built into this unit
and Maytag doesnt have any technical support AND I havent made any
progress with finding out where the factory is to ask this question

Thanks for the help guys!

Don't write off this suggestion.  I had a similar problem with a
dishwasher years ago.  The 'grinding sound' could be caused by a
defective water inlet solenoid.  Instead of opening properly, it just
buzzed.

And don't disregard the possibility of a defective water level switch.
The float switch is in series with the fill valve.

Googling 'MDB9601  parts' brings up a wealth of information, including
the wiring diagram and assembly drawing of the main pump area.   This
model has two pumps -  the main wash pump which has a food grinder in
it's shaft (a possible source of the noise), as well as the drain
pump.

PlainBill

I hadnt written anything off, in fact I was assuming that it was the
water valve and was wondering how i can replace it (even though it is
probably  just blocked up with dirt from the pipes) in situ.  I will
have to buy one as the local technicians like to come to any apartment
twice, once to diagnose when you tel them to bring a valve because
you need a valve and then again to bring the valve.

I had also tried to clean out the impeller mechanism but didnt get
very far as the round pump cover under the removable arm seems to be
exceptionally difficult to take out.

Whoo!!  Lots of stuff.  First, I forgot a link to the wiring /
assembly drawinghttp://www.appliancepartspros.com/partsearch/model.aspx?model_id=5170...

You could simply replace the valve, but I prefer troubleshooting to at
least establish that power (and water) is getting to the valve (P/N
6-920534).  Prices for this are all over the map - Appliance Depot
lists it at $19, others have it as high as $59.  They are also
available on eBay.

Tearing down the main pump assembly is a pain.  The lower rotating arm
must be removed, then there are a number of Torx screws that have to
be removed.  As I recall there are about three layers to it.

PlainBill

Luckily I found one for ten bucks including shipping!  I agree, the
dissembly of the pump area is a real pain as the mid and upper spray
arm seems to prevent the various bits being easily taken off to clean
or inspect: Possibly the solution is to use some sort of dishwasher
cleaner to get rid of whatever is in the impeller mechanism?  On
looking at it, it does look filthy but not with anything which would
block it. Unlike GE dishwashers, there seem to be various screens to
prevent that  sort of thing blocking the impeller?.

The assembly of yours looks similar (if not identical) to mine.  I
recently had to tear mine down to remove an accumulation of 'crud'.
The disassembly goes like this:
1. Remove the lower tray (the upper one also if you desire additional
clearance).
2. Remove the plastic nut that holds the lower spray arm in place,
remove the lower spray arm.
3. Remove three torx screws (T-15 IIRC) that hold the upper filter
plate in place and remove it.
4. Remove the (6?) torx screws that hold the discharge housing in
place and remove it (it is a snap fit into the water distribution
assembly).
5. Remove the screw holing the impeller in place and remove it.
6. Remove the screws holding the pump filter in place and remove it.
7. Examine the chopper that is just below the screen on the pump
filter.

Reassembly is the reverse of disassembly.

I live in an area that has very hard water.  Residue had clogged many
passages, in addition the screen in the pump filter was partially
clogged with food particles.

A common suggestion is to add 1 - 2 cups of white vinegar to the
dishwasher to remove any deposits.  That did not work well for me.

PlainBill

The problem I had was with the second part of stage 4. I couldnt get
the covers off around the upper spray arms at the rear.

(yes, there is lots of crud in there)
On mine it was not necessary to remove the upper spray arms. The

discharge housing slips (snaps) off the tube that leads to the middle
and upper spray arms.

PlainBill

 

[Amanda Ripanykhazova]

On mine it was not necessary to remove the upper spray arms.  The
discharge housing slips (snaps) off the tube that leads to the middle
and upper spray arms.

PlainBill

Oh that's where I went wrong! It snaps out and I wasn't prepared to
apply enough force. Thanks for confirming that, Have now found a
valve so cheaply shipped and will take impeller apart to make sure it
doesnt need too much attention there as well.

Emphatically didnt want to lose that lower tray-cleaning level which
no other dishwasher has now a days!

 

[Amanda Ripanykhazova]

On mine it was not necessary to remove the upper spray arms.  The
discharge housing slips (snaps) off the tube that leads to the middle
and upper spray arms.

PlainBill

Oh that's where I went wrong! It snaps out and I wasn't prepared to
apply enough force. Thanks for confirming that, Have now found a
valve so cheaply shipped and will take impeller apart to make sure it
doesnt need too much attention there as well.

Emphatically didnt want to lose that lower tray-cleaning level which
no other dishwasher has now a days!

 

[Amanda Ripanykhazova]

On May 7, 12:31 pm, Amanda Ripanykhazova <licensedtoqu...@gmail.com>
wrote:

On mine it was not necessary to remove the upper spray arms.  The
discharge housing slips (snaps) off the tube that leads to the middle
and upper spray arms.

PlainBill

Oh that's where I went wrong! It snaps out and I wasn't prepared to
apply enough force.  Thanks for confirming that, Have now found a
valve so cheaply shipped and will take impeller apart to make sure it
doesnt need too much attention there as well.

Emphatically didnt want to lose that lower tray-cleaning level which
no other dishwasher has now a days!

Hey guys, you were right, the humming was a jammed solenoid on the
input valve which I changed after finding one for the ten bucks i
mentioned. And while the unit may still need cleaning in the impeller
mechanism which I couldnt get at, it is now working properly.