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Whirlpool WDF510PAYWA Dishwasher Warming, not Heating

CraigNC

Premium Member
Joined
Jan 22, 2020
Messages
13
Location
Coats, NC
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

Appliance Tech - Admin
Staff member
Joined
Aug 24, 2004
Messages
128,974
Location
Redmond, Oregon
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

Premium Member
Joined
Jan 22, 2020
Messages
13
Location
Coats, NC
Well... I'll double check but nothing has changed with the water supply, and this same dishwasher used to heat the water properly.
 

Jake

Appliance Tech - Admin
Staff member
Joined
Aug 24, 2004
Messages
128,974
Location
Redmond, Oregon
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

Premium Member
Joined
Jan 22, 2020
Messages
13
Location
Coats, NC
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

Appliance Tech - Admin
Staff member
Joined
Aug 24, 2004
Messages
128,974
Location
Redmond, Oregon
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

Premium Member
Joined
Jan 22, 2020
Messages
13
Location
Coats, NC
Hmmm.... it says that's not compatible with WDF510PAYWA. Looks like one might not be available for this model
 

Jake

Appliance Tech - Admin
Staff member
Joined
Aug 24, 2004
Messages
128,974
Location
Redmond, Oregon
Sometimes AppliancePartsPros compatibility checker is not always up to date.

Its the correct control board for your model, look here:
Screenshot 2021-12-18 17.49.55.png
 

Jake

Appliance Tech - Admin
Staff member
Joined
Aug 24, 2004
Messages
128,974
Location
Redmond, Oregon
Your welcome!

Let us know how it goes.

Jake
 
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