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GE Profile Diswasher (PDW 7300) does not completely drain


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22 replies to this topic

#1 sachsab

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Posted 05 January 2009 - 06:33 AM

Alright, after thoroughly searching the forums for many of my issues over the past few years, I have stopped lurking, registered and coming out of the closet - only after the complete failure of my troubleshooting skills!.

I have a GE profile PDW7300 dishwasher that does not completely drain and leaves the dishes with spots.    

Disposal connection, hoses, flap valve are all good.  No obstructions in the drain at the bottom of the tub and when I connect AC directly to the sump motor - it drains completely (at a rate of about 1 cup per 5-8 seconds - seems normal).  During the cycle, the bottom fills to just under the heating element (as expected) and the washer pumps well into all three spinners (top, middle & bottom) - I can tell because they all spray me when I open it up quickly!  When the unit does drain, it drains well - just not long enough to empty the bottom of the tub.

Heeeelp!   I am a proud (read stubborn) do-it-yourselfer who refuses to be bested by a dishwasher.   Please help me keep my self esteem and beat this dishwasher.

--Andrew


P.S.  I did the Rinse then Reset test and it completely drained after the 2nd 'Rinse & Reset' cycle - the first one still left significant water in the bottom.


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#2 RegUS_PatOff

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Posted 05 January 2009 - 06:57 AM

How long does the Drain Pump operate ?

It should drain within, maybe 75 seconds

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#3 sachsab

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Posted 05 January 2009 - 07:03 AM

[user=3641]RegUS_PatOff[/user] wrote:

How long does the Drain Pump operate ?

It should run, for maybe 75 seconds

When I did the 'Rinse/Reset' it ran for EXACTLY 75 seconds - no 'maybe' about it.

With little water left, it obviously pumped much less than one cup every 8 seconds.   I should correct my statement above, when there is plenty of water, it pumps 1 cup every 8 - 10 seconds.

--Andrew


#4 RegUS_PatOff

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Posted 05 January 2009 - 07:05 AM

So, ... when the d/w is full, and you stop it in the middle of a cycle, and Rinse/Reset ...
does it drian for 75 seconds, and does that empty it completely ?


corrected:    prior parts pictured were for Main Motor

may need this Drain pump assembly

click on picture
Posted Image

.

one of my video productions: “Easter Seals: Walk With Me”

every day is Down Syndrome Awareness Day
"A Child Is Waiting" . Burt Lancaster . Judy Garland . 1962

RegUS_PatOff > www.youtube.com/watch?v=oPAY2LsKVEw

#5 sachsab

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Posted 05 January 2009 - 07:19 AM

[user=3641]RegUS_PatOff[/user] wrote:

So, ... when the d/w is full, and you stop it in the middle of a cycle, and Rinse/Reset ...
does it drian for 75 seconds, and does that empty it completely ?


may need this Motor shaft seal and impeller kit

click on picture
Posted Image

It ran for 75s but did not completely drain (about 1/4" left in bottom).




#6 GLC

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Posted 05 January 2009 - 08:30 AM

I know you checked the Disposal connection. Did this include (if you have one) the air gap on the top of the sink?  Perhaps some gunk stuck at the cap.

Unless specifically asked otherwise, remember to test with the unit unplugged, or breaker off.
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#7 sachsab

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Posted 05 January 2009 - 08:47 AM

[user=950]GLC[/user] wrote:

I know you checked the Disposal connection. Did this include (if you have one) the air gap on the top of the sink?  Perhaps some gunk stuck at the cap.

Clean as a whistle.   I took the cover off and let it drain into the sink to see how much water was coming out per second.




#8 telefunkenu47

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Posted 05 January 2009 - 01:18 PM

Have we ruled out suds lock?
Even root canal is easy...if you're a dentist...

#9 sachsab

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Posted 05 January 2009 - 01:50 PM

[user=15157]telefunkenu47[/user] wrote:

Have we ruled out suds lock?

If you mean the pump problems caused by excess suds in the water - I would say yes. 

I have this problem (water does not fully drain) even when there is no detergent and when the discharge is clear (no suds).



#10 Samurai Appliance Repair Man

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Posted 05 January 2009 - 01:54 PM

Try running it empty-- no dishes, no detergent. Any change in residual water level?

#11 sachsab

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Posted 05 January 2009 - 02:08 PM

[user=3641]RegUS_PatOff[/user] wrote:

So, ... when the d/w is full, and you stop it in the middle of a cycle, and Rinse/Reset ...
does it drian for 75 seconds, and does that empty it completely ?


may need this Motor shaft seal and impeller kit

click on picture
Posted Image

As said above - it does not drain completely.  I need 2-3 cycles of rinse/reset to get the water out.

On the motor shaft seal and impeller kit - since mine has a separate sump, would I just replace that assembly?

Thanks!


#12 sachsab

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Posted 05 January 2009 - 02:33 PM

[user=1]Samurai Appliance Repair Man[/user] wrote:

Try running it empty-- no dishes, no detergent. Any change in residual water level?

No, running a full cycle leads to about 1/2" of water in the bottom - w or w/o dishes or detergent.  2-3 "rinse/reset" cycles will get rid of it.

It turns out that I am only pumping a cup every 10 seconds when it goes to the sink - 5-8 seconds when going to a bucket on the floor (hmmmm.... not such a good test afterall!)

Could this just be a sump that is not 'sumping' so well and not able to drain the tub in time?  If the total usage is 4-6 gallons (maybe 1.5 gallons per cycle) and I am pumping a cup out every 8-10 seconds, I will only get out 6 cups in 60 seconds or 9 cups in 90 seconds.  Seems too slow to drain the tub during a normal cycle.




#13 RegUS_PatOff

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Posted 05 January 2009 - 04:43 PM

[user=44884]sachsab[/user] wrote:

...As said above - it does not drain completely.  I need 2-3 cycles of rinse/reset to get the water out.

On the motor shaft seal and impeller kit - since mine has a separate sump, would I just replace that assembly?

Thanks!

 

corrected:  prior parts pictured were for Main Motor

may need this Drain pump assembly

click on picture
Posted Image
.

one of my video productions: “Easter Seals: Walk With Me”

every day is Down Syndrome Awareness Day
"A Child Is Waiting" . Burt Lancaster . Judy Garland . 1962

RegUS_PatOff > www.youtube.com/watch?v=oPAY2LsKVEw

#14 sachsab

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Posted 05 January 2009 - 11:09 PM

[user=3641]RegUS_PatOff[/user] wrote:

[user=44884]sachsab[/user] wrote:

...As said above - it does not drain completely.  I need 2-3 cycles of rinse/reset to get the water out.

On the motor shaft seal and impeller kit - since mine has a separate sump, would I just replace that assembly?

Thanks!

 

corrected:  prior parts pictured were for Main Motor

may need this Drain pump assembly

click on picture
Posted Image

Sold!  (and ordered..)

If this works, I'll share some of my son's homemade rootbeer with you (and have something to wash the bottles with!)  No kidding, he is a bit of a rootbeer aficianado and this stuff is amazing.

http://www.amazon.co...pd_bxgy_b_img_b

Cheers!






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#15 grey shrek

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Posted 06 January 2009 - 06:07 PM

Piston valve at back of d/w , under the cover  -  is it clean and looks proper.?


#16 sachsab

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Posted 06 January 2009 - 09:25 PM

[user=32234]grey shrek[/user] wrote:

Piston valve at back of d/w , under the cover  -  is it clean and looks proper.?

Does a PDW7300 have a piston valve?  As said above, I did check the flapper valve and that looked good.


#17 grey shrek

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Posted 07 January 2009 - 10:27 AM

Oops   -  I was just going with the "profile" . I'll just sit here and be quiet now..


#18 telefunkenu47

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Posted 13 January 2009 - 03:07 PM

Ah yes. The dreaded chamber of horrors.
Even root canal is easy...if you're a dentist...

#19 sachsab

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Posted 15 January 2009 - 11:46 AM

[user=44884]sachsab[/user] wrote:

[user=3641]RegUS_PatOff[/user] wrote:

[user=44884]sachsab[/user] wrote:

...As said above - it does not drain completely.  I need 2-3 cycles of rinse/reset to get the water out.

On the motor shaft seal and impeller kit - since mine has a separate sump, would I just replace that assembly?

Thanks!

 

corrected:  prior parts pictured were for Main Motor

may need this Drain pump assembly

click on picture
Posted Image

Sold!  (and ordered..)

If this works, I'll share some of my son's homemade rootbeer with you (and have something to wash the bottles with!)  No kidding, he is a bit of a rootbeer aficianado and this stuff is amazing.

http://www.amazon.co...pd_bxgy_b_img_b

Cheers!







SUCCESS!!!! Clean dishes with a dry bottom (... sounds like my kids...)

Just installed the pump and water comes out many time faster than before.

I guess the lesson here is to measure how fast the pump empties into the sink (not into a bucket) and make sure it is plenty fast enough to empty the dishwasher. 

 


#20 RegUS_PatOff

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Posted 15 January 2009 - 12:16 PM

sachsab wrote:

...
SUCCESS!!!! Clean dishes with a dry bottom (... sounds like my kids...)

Just installed the pump and water comes out many time faster than before..

Posted Image
.

one of my video productions: “Easter Seals: Walk With Me”

every day is Down Syndrome Awareness Day
"A Child Is Waiting" . Burt Lancaster . Judy Garland . 1962

RegUS_PatOff > www.youtube.com/watch?v=oPAY2LsKVEw




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