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AlexM

GE Dishwasher Model# PDW9280N00SS, Possible Touch Pad or Control Board?

7 posts in this topic

This GE Dishwasher has a standing water in the bottom and will not run. The control lights are on, but I can't get them to work or start the machine. 

This is a list of the things that I checked so far:

 

1. Latch micro switch O.K.

2. Float switch O.K.

3. Motor runs with 120vac applied.

4. Checked power at outlet and junction box, good polarity ect. O.K. 

 

Is there a fuse or something that i need to check? and how would I go about testing the control board or keypad?  I don't really want to order both and start changing parts till it works, expensive and not real fun.  Does anybody have a tech sheet on this unit?  Thanks.

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Need appliance parts? Call 877-803-7957 now!

See if you're getting 120vac clear up to the control module.  If you are, then replace the control module.  Done and done, in the sun.    :beach:

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This DW controls light up, but do not operate, there is standing water at the bottom and I checked;

 

1. Latch switch-OK

2. Float switch -OK

3. Motor runs with 120vac applied

4. Controls light up, but do not respond

5. Unit doesn't run

 

I didn't have a wireing diagram, is there a thermal fuse or something I'm overlooking?  How can i check if its the control board or the touch pad?

 

Thanks

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See if it will go into diagnostic mode using the confidential and proprietary diagnostic mode manual:  http://appliantology.org/files/file/823-ge-dishwasher-diagnostic-modes-manual/

 

 

If it does, then the keypad is fine.  Replace the control module:  http://www.repairclinic.com/PartDetail/Control-Module/WD21X10370/1472734

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I will cut to the chase, I couldn't figure out how to test for voltage, so I started with a new touch pad, didn't work.  Then i put in a new main board, still didn't work. I just got home and read in the manual about the 'Factory Test Mode' and the 'Factory Calibration', are they the same thing and is this why I couldn't get the unit to run?  The controls seamed responsive to the touch, I just couldn't get it running...

 

If not this calibration, could it be a bad Transorb?  (Im not total clear on what the Transorb does?)

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I will cut to the chase, I couldn't figure out how to test for voltage, so I started with a new touch pad, didn't work.  Then i put in a new main board, still didn't work.

 

Well, that narrows it down quite a bit!  

 

Bad transorbs will typically trip the circuit breaker because L1 and neutral get tied together through the defective transorb.  The PDW7000 series had them, but I couldn't find one listed in the parts for your model.  More info on the transorb here:  http://fixitnow.com/wp/2010/08/23/ge-triton-xl-dishwasher-trips-circuit-breaker/

 

 

Factory test mode lets you test aspects of the dishwasher's functionality.  Factory calibration runs a calibration on things like temperature and turbidity sensors.  

 

At this point, you just want to put the unit into what's called "Service Mode" (same as factory test mode) on the tech sheet.  Do you have the tech sheet?  If not, you can borrow mine:  http://appliantology.org/files/file/837-ge-pdw9280n-dishwasher-mini-manual/

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