Whirlpool WP1-81801-001 Defrost Thermostat (Bi-Metal) OEM Part

Product Details

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

Cross Reference Information

Part Number WP1-81801-001 replaces AP6005190, 1-81801-001, 14220680, 1615758, 4390783, 52085-26, 68001088, 8210253, PS11738201, R0213208.

Description

This defrost thermostat is a bi-metal switch that senses evaporator temperature during defrost and opens to stop heater power once the coil warms. Replacing a failed thermostat restores proper defrost, reducing ice buildup and airflow-related cooling problems.

• Monitors evaporator coil temperature during defrost
• Opens the heater circuit at a set temperature; recloses when cold for the next defrost
• Helps protect against overheating and ensures consistent defrost operation
• Common symptoms: heavy frost on the evaporator, weak airflow/warm fresh food section, repeated ice buildup after manual defrost

Includes: 1 defrost thermostat Install notes:

• Disconnect power before servicing; wear cut-resistant gloves
• Access the thermostat at the evaporator behind the freezer's rear panel
• Move wires one-for-one from the old part; mount in firm contact with the coil/tubing and secure leads away from the fan
• After installation, the thermostat should show continuity when cold and open circuit when warm