Whirlpool WP52085-28 Defrost Thermostat for Refrigerator

The defrost thermostat monitors the evaporator coil temperature and controls when the defrost heater turns on and off. It helps regulate the defrost cycle and prevent excessive frost buildup.

When frost builds up and the evaporator coil reaches the preset temperature range, the thermostat closes the electrical circuit and activates the defrost heater. Once sufficient heat is generated, it opens the circuit and stops the heating cycle.

The defrost thermostat is attached directly to the evaporator coil inside the refrigerator compartment. Its position allows it to monitor the coil temperature during the defrost cycle.

Compatible models include AT15M4A-DA03A, AT19M9V/DE53A, AT19N8M, AT21EM9A/DA78A, and AT15M4W-DA02A. These models are designed to use the Whirlpool Defrost Thermostat for Refrigerator.

The thermostat controls the defrost heater based on the evaporator coil temperature. This helps remove accumulated frost and prevents excessive ice buildup that could affect airflow.

Yes. It is an OEM replacement thermostat designed to regulate the defrost cycle in compatible refrigerator models.

The Whirlpool Defrost Thermostat for Refrigerator ships via Ground, with an estimated delivery time of 5–7 business days.