WP4387503 Refrigerator Defrost Thermostat for Whirlpool AP3108454 PS371255

Genuine WP4387503 Refrigerator Defrost Thermostat for Whirlpool AP3108454 PS371255 Cross Reference Information: Part Number WP4387503 replaces AP6009317 4387503, 2149641, 2149643, 2163894, 2172694, 2182380, 2183072, 2221677, 4343917, 61002113, PS11742474, R0950042, WP4387503VP. Pay attention to the following information: The Defrost Thermostat is designed for use in refrigerators. This component functions as a crucial safety device in the refrigerator’s defrost system, ensuring that the freezer does not overheat during the defrost cycle. It accomplishes this by monitoring the temperature of the evaporator coil and deactivating the defrost heater when the coil reaches a certain temperature, effectively safeguarding the freezer from excessive heat. Potential causes of a malfunctioning defrost thermostat include corrosion, a blown fuse within the thermostat, or general wear and tear over time. Recognizable symptoms of a defective Defrost Thermostat may include: – Frost accumulation on the back wall of the freezer – Inadequate cooling in the refrigerator – A cold freezer but a warm refrigerator – Failure of the defrost heater to activate It is important to note that this is also compatible with Hotpoint, RCA, and some Kenmore models. This part effectively addresses the following issues: – Freezer failing to defrost – Freezer being excessively cold – Inability to dispense water – Inoperative ice maker – Excessive warmth in the freezer section – Refrigerator running for extended periods – Excessive frost buildup – Refrigerator being excessively cold – Refrigerator being excessively warmPlease take note of the following information: The Defrost Thermostat is an original equipment manufacturer (OEM) replacement part designed for use in refrigerators. This component serves as a safety device in the refrigerator’s defrost system, preventing the freezer from overheating during the defrost cycle. It functions by monitoring the temperature of the evaporator coil and shutting off the defrost heater when the coil reaches a certain temperature, thus protecting the freezer from becoming too hot. Causes of a malfunctioning defrost thermostat may include corrosion, a blown fuse inside the thermostat, or wear and tear over time. Symptoms of a faulty Defrost Thermostat may include: – Frost buildup on the back wall of the freezer – Inadequate cooling in the refrigerator – Cold freezer but warm refrigerator – Defrost heater not activating This replacement part is also compatible with some Kenmore models. This part addresses the following issues: – Freezer not defrosting – Freezer too cold – Water not dispensing – Ice maker not producing ice – Freezer section too warm – Refrigerator running too long – Excessive frost buildup – Refrigerator too cold – Refrigerator too warm