What it does. Why it matters. Everything you need to know for an easy fix.
Dishwasher High Limit Thermostat Specifications
This part acts as as safety mechanism that keeps the dryer from overheating. Once the dryer temperature reaches a certain point, this part will shut down power to the heating element.
Part #WP661566
Manufactured by
Whirlpool
for Kenmore, Whirlpool, KitchenAid, Maytag
Real ratings from other people who bought this part.
Average Rating:
★★★★★
★★★★★
10 Reviews
4.9
Out of 5
5 Stars
9
4 Stars
1
3 Stars
0
2 Stars
0
1 Star
0
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★★★★★
★★★★★
Stephen R - February 14, 2018
Verified Purchase
Great experience!
Fast delivery, great price, and the video made installation easy!
★★★★★
★★★★★
Kenneth E - November 25, 2022
Verified Purchase
Easy Repair
The part was an exact match and fixed the problem on first time.
★★★★★
★★★★★
Harry E - May 15, 2019
Verified Purchase
No heat
Parts select great web site, part arrived like the next day. After installing thermo and heat element still no heat. Don,t know what to do, any suggestions?
★★★★★
★★★★★
Josh S - April 9, 2026
Verified Purchase
Easy
Great
★★★★★
★★★★★
HENRYK C - October 29, 2018
Verified Purchase
easy repair
the part was in great condition
★★★★★
★★★★★
Kevin P - January 28, 2019
Verified Purchase
Great part
Easy to install. Fixed the problem
★★★★★
★★★★★
Ara D - December 25, 2018
Verified Purchase
Easy repair,but no fix my problem
My two year old whirlpool dishwasher had a heating element that was broke in two pieces.Easy fix,Right?Wrong! Installed new element.Still no heat.Install new thermostat even though it tested
good.still no heat.Only one part left.Control board.Ordered control board.Hope it fixes it.I remember when appliances lasted 20 years no problem.Now you're doing good if it lasts 2.
★★★★★
★★★★★
Jason G - April 23, 2018
Verified Purchase
My brand new 17-yr old Superba
We built our house in late 2000. We installed a Whirlpool Superba Dishwasher which has always run flawlessly. Recently, the soap dispenser door began to fail to lock shut and the top rack wasn't drying very well. After going online and locating the parts, I called PartSelect to confirm that the legacy repair parts would be compatible with my older, NLA dishwasher. The phone support/sales agent was fantastic and recommended the appropriate parts. I ordered on the call and got my parts 2 days later. In the email confirming that the parts had shipped were links to videos showing the installation procedures. I followed both instructions and completed both repairs in about an hour, including cleaning up 17 years worth of goop behind and around both pieces. I know have sparkling, dry dishes when I open the dishwasher. it's like a new machine, for about 15% of the cost of buying one. I couldn't be happier.
★★★★★
★★★★★
Paul C - July 31, 2018
Verified Purchase
Typical part
Great service. Arrived when it was suppose to. OEM part not su- contracted
★★★★★
★★★★★
Tarun S - March 6, 2018
Verified Purchase
WORKED AS EXPECTED
THE PART WAS GOOD. I INSTALLED IT , IS WORKING GOOD.
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Repair Tips
See how others fixed this model. Time, tools, difficulty, and steps that lead to victory!
Easy
30 - 60 mins
Average repair rating from 10 real customers like you
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Sorry, we couldn't find any existing installation instruction that matched.
Heating element not heating for both wash and dry.
4 of 4 peoplefound this instruction helpful.
Thomas from SEATTLE, WA
Really Easy
30 - 60 mins
Screw drivers
Put in both a new element and thermostat. Did not fix problem. Using an ohm meter I did not measure any voltage to the thermostat. Suspect it’s a problem in the control unit, and decided to replace dishwasher.
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The light on the option panel "Hi-Temp Scour" is on.
3 of 5 peoplefound this instruction helpful.
Rafael A from HOUSTON, TX
Very Difficult
More than 2 hours
I spent $290 in parts (4 in total). I replaced all of them. I resetted clicking 1,2,3 and 1,2,3 and 1,2 3 and then click the button normal. But The diswasher is still not working. The "hi-temp Scour" is still on. I would like to ask to the dishwasher technitian, why the diswasher is not working even I replaced the
... Read more 4 parts related to the temperature? I followed all videos to replace the 4 parts and resett the dishwasher, but the dishwasher is not working. Thanks.
My dishwasher's heated dry cycle wasn't heating up
10 of 11 peoplefound this instruction helpful.
Brendan from SARATOGA SPGS, NY
A Bit Difficult
30 - 60 mins
Socket set
After pulling the dishwasher out from under the cabinet, I found it underneath near the back right side. I disconnected the old thermostat, unscrewed the clamp holding it into place, put the new thermostat in, screwed it back in and replaced the two plugs. Then I pushed the dishwasher back into place, and it initially didn't work until
... Read moreI found an online forum that was able to identify the reset command for my dishwasher (for the WDT710PAYM4, press any three buttons in a sequence of 1 2 3 1 2 3 1 2 3. After completing that all the lights lit up, and I shut the door leaving it for half an hour) Once the reset finished, the heated dry worked like it was suppose to.
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No heat. Replaced thermostat
13 of 14 peoplefound this instruction helpful.
Tim from BURTONSVILLE, MD
Really Easy
30 - 60 mins
Screw drivers, Socket set
Was able to replace and repair without taking the dishwasher out. Thermostat is behind and to the left of the power junction box. Has 2 wires going to it. It is up against the bottom of tub. I used an angled mirror to see what I was doing. 1 small screw to detach and pull down thermostat. Be sure power is off before you start.
... Read moreAlso reprogrammed defaults. Hit any button 1-2-3, 1-2-3, 1-2-3, fast and close door. Let it sit 15 min to run and re-set defaults. Now I have heat and dry dishes.
Easily replaced motor and pump per video. Located high limit thermostat looking up from bottom and held on with two screw bracket. Reset code: push "Hi temp scour" then push "Air dry" then repeat push of "Hi temp scour" / "Air dry". Works like new - thanks.
My dishwasher quietpartner ii was not cleaning my dishes. It seemed it was not heating correctly that the Hi temp wash or the heated dry.
1 of 4 peoplefound this instruction helpful.
Jesus from Tucson, AZ
Easy
15 - 30 mins
Pliers, Screw drivers, Wrench (Adjustable)
I loooked up the main problems associated with that model which is provided on the website and ended up ordering a heating element and a thermostat. I replaced both parts it took me about 30 minutes. The dishwasher is working again and my wife is very happy. Thanks guys!!!
Clean light was flashing and washer would not start
0 of 2 peoplefound this instruction helpful.
Raymond from Beach, ND
Easy
15 - 30 mins
Screw drivers
Replaced heating element and high limit thermostat. Was suppose to fix the problem but did not. Replaced the control board and works now. All of these are easy to replace.
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dishwasher did not completed the drying cicle. heated dry button blinking
38 of 81 peoplefound this instruction helpful.
Eduardo Figuera from miami, FL
Really Easy
30 - 60 mins
Nutdriver, Screw drivers
I just changed all parts that could make any effect in temperature control. even the thermal fuse. this was easy,looking in details all the drawings you have in your page. so I pulled out the dishwasher changed the parts and ready!! it work great now . thanks for your guide and help.
I shut off the power to the dishwasher, then I removed the front panel under the door. On the right side just behind the electrical box there are two wires going up to the hi-limit thermostat, (you may need a small mirror to see it), remove one screw that is holding the thermostat bracket, unplug the wires from the old thermostat and inst
... Read moreall new one. Screw bracket and thermostat back to the underside of the dishwasher, reinstall the front panel, turn on the power, done.
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Unit Wouldn't Work. "Clean" Light Blinking
108 of 150 peoplefound this instruction helpful.
PAUL from ESTES PARK, CO
Really Easy
1- 2 hours
Nutdriver, Screw drivers
The unit had power, but the controls would not work. The "clean" light was blinking. I first replaced the control unit, no help. I then used the "just ask" and was told the problem was the heating element and/or the hi-temp thermostat. I replaced both those and used the re-set code pushing the "hi-temp/air dry, hi-temp/air dry" button
... Read mores. That did it. Easy parts to locate and replace. It took longer pulling the unit out and putting it back than it did to replace the parts.
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Ashley - For model number WDP350PAAW1
October 1, 2017
My dishwasher is not getting hot. The water going in is hot but it doesn't seem to be hot inside during the running cycle. I put it on high temp and heat dry to no avail. Heating element? Also, the little red button on the back of hose that connects to the faucet, when i draw water from it while dishwasher is running, it isn't hot water either.Thank you!
Hello Ashley, thank you for contacting us. It could be the high limit thermostat, it could also be the heating element. You can test these with a multi meter. Good luck with the repair!
How can you tell if the high limit thermostat is not working and how can you check it to see if it is bad thanks
Hello Frank, Thank you for the question. The thermostat should read closed at room temp. You can test this with a multi-meter. Hope this helps!
14 peoplefound this instruction helpful.
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Brad - For model number WDF540PADT1
November 9, 2017
I have water to the machine and it starts and seems to run ok but is not cleaning well. I do not seem to have good cleaning pressure. I have cleaned all the filters and spray arms and changed the water inlet valve.
Hi Brad, Thank you for the question. The drain hose may not have a loop in it. The fill water may be draining out of the dishwasher by going straight out the drain hose. Be sure that your drain hose is not simply laying straight. It must have a loop in it or be off the ground so the water is not gravity fed out via the drain hose. You can also try to empty the dishwasher, set it to run a wash cycle. Let it fill with water as normal. When the dishwasher begins the cycle, open the door and see if the water level is just under the heating elements.If there is not enough water there may be a clog in your water fill line. Remove the fill hose where it attaches to the fill valve. Check to be sure there is nothing clogging the screen on the inlet fill valve. Also check the water fill line for blockage. You can also check the Overfill Control Switch if it is not filling with water at the correct level. If it is defective it can shut the water flow off too soon. Hope this helps!
5 peoplefound this instruction helpful.
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Drew - For model number Kenmore 665.13123k703
January 14, 2018
My dishwasher water does not get hot. We have tested the heating element and the high limit thermostat with a multimeter and they are both functional. What else could it be?
Hello Drew, Thank you for your inquiry. I would also check the bi-metal fuse/thermal fuse, door switch-and wires going from it to the control board, and the control board itself. Hope this helps!
4 peoplefound this instruction helpful.
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Bahman
May 4, 2018
Thank you for the respond, are you referring to thermal fuse part #: W10344801? Isn't this part to shut the dishwasher off if the dishwasher shorts out or overheats? Regards
Hi Bahman, Thank you for the question. This part is used as a safety device to protect the dishwasher circuit from overload. If the temperature gets to high it will shut off the electrical current to the heating unit in the appliance. Hope this helps!
2 peoplefound this instruction helpful.
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Richard - For model number wdt720padm2
January 10, 2019
I've replace the high limit theromastad and the door lock control. It wants to start you can hear water going into machine but then nothing happens. Any ideas of the possible problem.
Hello Richard, thank you for your question. If there is water getting into the unit but the appliance will not start the cycle you will want to test the motor to see if it has failed. If the motor is fine, the issue would be with the electronic board which would have to be replaced. I hope this helps!
2 peoplefound this instruction helpful.
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John - For model number DU912PFGQ2
July 23, 2017
My dishwasher won't run and i think the switches are both fine. If the high limit thermostat is bad will it prevent the machine from running at all or just affect the operation or heating?Thanks.
Hi John,
That is a good question. It may cause the situation you are describing. Another part that may fix the issue could be the door switch kit as well. You may need to contact Whirlpool for more information. Their telephone number is 1-866-698-2538. I hope this helps. Thanks and have a great day!
2 peoplefound this instruction helpful.
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Josey - For model number WDF530PAY0
August 8, 2017
Sanitize light blinking at end of wash cycle. Heating element bad? Thermostat? Water entering machine is above 120f prior to start.
Hi Josey,
Thank you for the question, the flashing sanitize light indicates it did reach the sanitize temperature of 140-155 degrees in the final rinse. You can try running the hot water in the adjoining sink to get the hot water up to max temperature before starting the dishwasher. If this does not help try opening the door a bit during the wash cycle to see if there is steam indicating the water is hot. If the water is not getting hot then you may need to replace the heating element.
Hope this helps!
2 peoplefound this instruction helpful.
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David - For model number DU9560PWKT1
August 16, 2017
Dishwasher won't start and no lights come on at touch pad. Control lock reset does not happen. Power getting to cord at receptacle (120v). Possibly not getting adequate voltage to the door switch. Door switch tests normal for continuity on both sides. Fuse tests normal for continuity. Suspect control panel is the problem. What steps are taken to test control panel or is replacement just the only option?
Hello David, thank you for contacting us. If you have already tested the thermal fuse then it's very possible that it would be the control board PS11746115 needing to be replaced. Good luck with the repair!
My dishwasher shut off mid rinse cycle and will not turn on again. It has water sitting in the bottom because it didn't and won't drain. What would cause this? Could it be the thermostat or the thermal fuse?
Hello Tonia, Thank you for your inquiry. We would recommend checking following parts to fix your issue. Check your drain hoses and filter screen for any clogs or leaks. Test the drain pump and drain motor with a multimeter for continuity. If you are unfamiliar with how a multimeter functions, there are YouTube videos available to assist you. Hope this helps!
1 personfound this instruction helpful.
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