Parts for Kitchenaid KUDR204EPA00: 02 - Cabinet Parts

This defrost sensor monitors evaporator temperature so the fridge's defrost system runs when needed, helping prevent excessive frost and maintain efficient cooling. It replaces a faulty thermistor to restore proper defrost cycles and temperature sensing. What it does:

• Senses evaporator coil temperature and sends readings to the control board or defrost timer.
• Triggers defrost cycles when the evaporator reaches temperatures that indicate ice buildup.
• Commonly used when frost accumulates on the evaporator or the freezer runs too cold/too warm between cycles.
• Works with compatible refrigerator control systems that rely on a thermistor-style defrost sensor.

• One defrost sensor (thermistor) assembly.

• Disconnect power to the appliance before servicing to avoid electrical shock.
• Handle the sensor and wiring gently; avoid pulling on wires or bending the sensor probe sharply.
• Follow OEM routing and connector orientation; secure the sensor to the evaporator per the original mounting.

This clip-mount bimetal defrost thermostat senses evaporator temperature and closes to allow the heater circuit during defrost cycles, helping prevent ice buildup on the evaporator. It restores proper defrost operation when the thermostat has failed. What it does:

• Opens and closes based on evaporator temperature to control the defrost heater circuit
• Allows the defrost heater to run when ice buildup requires melting
• Common symptom: excessive frost or ice on the evaporator coils
• Common symptom: defrost cycle not activating or freezer running intermittently

• One bimetal defrost thermostat with mounting clip

• Disconnect power to the appliance before servicing to avoid shock
• Replace only when the original defrost thermostat is faulty; handle the sensing element carefully
• Ensure the thermostat is securely clipped to the evaporator tube and wiring connections are tight