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High Limit Thermostat

Part Number: AP3010530
MFG Part Number: 661566
Made by: Whirlpool
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$24.25 $8.81

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Satisfaction Rating (1)

Questions & Answers

37 Questions & Answers


Thermostat has 1/4 inch terminals.

Genuine Whirlpool part. Whirlpool brands include Whirlpool, Maytag, KitchenAid, Jenn-Air, Amana, Magic Chef, Admiral, Norge, Roper, and others. See all items in Dishwasher Fuse Or Sensor.
Whirlpool also makes various appliance models for Sears / Kenmore.

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Repair Help

Cross Reference Information

Part Number 661566 (AP3010530) replaces W10339474, 2887, 3369777, 3370783, 3371618, 4171694, AH382429, EA382429, PS382429.

Do-It-Yourself Stories from Customers like You
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Overheating during wash cycle, causing the failsafe switch [fuse] to turnoff the dishwasher, permanently. Stuart H. • Port Angeles, WA • March 14, 2014

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Repair Time Estimate

15-30 minutes 

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Repair Video

How to Replace High Limit Thermostat #661566

Step by step instructions on how to replace a High Limit Thermostat #661566 for Dishwasher made by Whirlpool, KitchenAid, Roper, Kenmore, Maytag, Magic Chef, Jenn-Air, Estate. Note: This video is intended to give you the general idea of the part replacement procedure. Your appliance may differ depending on the manufacturer and model.


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Questions & Answers

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Most Interesting

I changed my heating element and it still does not heat up... resistance for the Hi-temp thermostat is between .9 and 1.3 ohms. I was told if the resistance is between 0 and 1 to replace it... could this be the problem even though it does not read consistently above 1? would a truly "bad" switch read well above 1 or is my reading consistant with a bad switch. thanks. Jim

Jim for Model Number 66516463300


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My dishwasher is no washing properly and sticks on dry cycle runs fine through all other cycles what do I check or replace thanks.

Dave for Model Number MODEL_PBK0190


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My Kenmore Ultra Wash Dishwasher blows the Thermal Cut Off device. I have checked the heating element - it measures correct resistance. I ran the dishwasher in the Service Diagnostic mode, and the max current draw is about 10A when heater is on - This seems ok, so I don't sure why the TCO is blowing. I checked the Thermistor, it measures 41.9 k ohms at ambient temp of 83 degrees, and drops when I heat it with a hair dryer - seems to be working appropriately, but not sure. The High Limit Thermostat is closed - Don't know if this should operate as a routine occurrence during a cycle to control the temperature, or if the Thermistor circuit and Control Board handles that. Any ideas would be appreciated. Thanks.

Robert for Model Number 16032.401


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Latest Questions

My kenmore dishwasher wont start. LED lights work on the panel, but start will not light, nor will delay wash. Is this the thermo switch?

Kenmore-Wont-Start for Model Number kenmore


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Our dishwasher is not heating, I checked our heating element and it was bad, so I replaced it and its still not working. I check thermostat with meter and it read o ohms, and still no heat. Could it be a bad control board or am I missing a step in this process?

Adam for Model Number WHIRLPOOL WDT710PAYM0


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Cycle stalls after wash cycle. Drain motor runs continually.

George for Model Number 66513232k701


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