Whirlpool WDF510PAYWA Dishwasher Warming, not Heating

[CraigNC]

Model Number

WDF510PAYWA

Brand

Whirlpool

Age

6-10 years

Hello -

My Whirlpool WDF510PAYWA dishwasher is warming, but definitely not heating the water to proper temperature. It runs through all the cycles normally otherwise.
I have replaced the heating element and the thermostat, neither of which solved the problem. Obviously it's something else - any suggestions on what to try next?

Thanks

 

[Jake]

Are you absolutely sure the COLD water supply line is NOT going to the dishwasher? I'm seen this happen many times on my service calls. When the dishwasher is installed the installer connects the COLD water supply line to the dishwasher.

It needs the HOT water supply line to the dishwasher.

The way you can tell is run the HOT water at the sink first and make sure the water is very hot coming out the sink faucet, then start the dishwasher and after the dishwasher fills open the door and feel the water in the bottom of the tub to see if its HOT.

Jake

 

[CraigNC]

Well... I'll double check but nothing has changed with the water supply, and this same dishwasher used to heat the water properly.

 

[CraigNC]

Yes, it's definitely connected to the hot water supply.

 

[Jake]

Ok good,

Now run the HOT water at the sink first and make sure the water is very hot coming out the sink faucet, then start the dishwasher and after the dishwasher fills open the door and feel the water in the bottom of the tub to see if its HOT.

If you have a thermometer take the temperature of the water too, it should be about 120 degrees.

Jake

 

[CraigNC]

Yes, hot water is running at the sink and same temp when it runs into the dishwasher. The problem seems to be that the heating element is not properly boosting the temperature. So since I’ve replaced the element and thermostat, what is left to check? Is it a control panel problem at this point?

 

[Jake]

Ok, the only part left that controls the heating element is the control board.

Here's the control board for your model:
W10804121 Cntrl-Elec


Jake

 

[CraigNC]

Hmmm.... it says that's not compatible with WDF510PAYWA. Looks like one might not be available for this model

 

[Jake]

Sometimes AppliancePartsPros compatibility checker is not always up to date.

https://www.repairclinic.com/PartDetail/Main-Control-Board/W10804121/4262715

Its the correct control board for your model, look here:

 

[CraigNC]

Sometimes AppliancePartsPros compatibility checker is not always up to date.

https://www.repairclinic.com/PartDetail/Main-Control-Board/W10804121/4262715

Its the correct control board for your model, look here:
View attachment 63237

Great, thanks

 

[Jake]

Your welcome!

Let us know how it goes.

Jake