Cycling Thermostat

Cycling Thermostat

The WP3398128 is a cycling thermostat for Whirlpool dryer and washer and washer dryer combo. Basic tools needed. Compare prices from top sellers.

Replaces: 3398128, 527433
Moderate Repair

Fits 4 brands

Whirlpool
Amana
Kenmore
Roper

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4 stores · Updated May 15, 2026
Part AdvantageLowest
$40.06
4.8(728)In Stock
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PartSelect
$57.38
4.5(13.6k)In Stock
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ApplianceParts Pro
$57.39
4.8(21.9k)In Stock
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RepairClinic
$61.68
4.4(3.1k)In Stock
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This Dryer Cycling Thermostat monitors and regulates the temperature inside the dryer. If the cycling thermostat is no longer working properly, you may notice that your dryer will not heat. Note that this part is not typically the cause of the dryer not heating; a multimeter (item 964740) can be used to test for continuity to determine if the thermostat is defective and requires replacement. Refer to the Repair Help section on the Whirlpool Parts website for additional repair information. Replacing this part will require basic hand tools, some disassembly of the dryer and novice repair experience. You must unplug the appliance or shut off the house circuit breaker for the appliance before installing this part. The cycling thermostat is located in the back of the appliance.

Part Specification
•  This product is a Factory Certified Part. These three words represent quality parts and accessories designed specifically for your appliance. Time tested engineering that meets our strict quality specifications
•  This product is a replacement part
•  Package contains (1) Dryer Cycling Thermostat
•  Tools Needed: Multi screwdriver

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Common Problems This Part Fixes

Not heating
Overheating or shuts off
Won't stop
Shuts off mid-cycle

Repair difficulty: Moderate - basic tools and 1-2 panels to remove

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