Amana Refrigerator TRGI18QBW Fridge too warm

The Defrost Thermostat is an OEM part for Whirlpool refrigerators. It monitors the temperature of the evaporator coils and triggers the defrost cycle when the coils get too cold, preventing frost buildup and ensuring efficient cooling.  It operates by closing the heater circuit to initiate the defrost cycle. It opens the circuit when the temperature rises above 55 degrees Fahrenheit. It then resumes operation when the temperature drops to 20 degrees Fahrenheit.

Causes of a bad defrost thermostat can include regular wear and tear, exposure to moisture, or electrical issues. Over time, the thermostat may lose accuracy or stop working altogether, leading to frost accumulation or inefficient cooling.

Symptoms of a bad defrost thermostat include:

• Excessive frost buildup in the freezer
• The refrigerator running continuously or not cooling properly
• The defrost heater not activating
• The refrigerator cycling on and off frequently

This OEM part is also compatible with Maytag, KitchenAid, Jenn-Air, Amana, Magic Chef, Admiral, Norge, Roper, and Kenmore models.

This OEM Replacement Part is a high-quality, 2-watt condenser fan motor for Whirlpool refrigerators.The motor is designed to optimize your refrigerator's cooling performance. This 115-volt motor operates with a clockwise rotation.  

Symptoms of a bad condenser fan motor kit include:

• Gradual rise in interior freezer temperatures
• Inability to maintain consistent cooling performance  
• Loud buzzing or grinding noises coming from inside
• Tripped breakers or failure to restart after service

Causes stem from normal wear of ball bearings as the high-efficiency motor operates continuously. Exposure to dust or debris introduced through openings accelerates wear over many years of use.

This OEM part is also compatible with brands including Kenmore, KitchenAid, and Danby.

This defrost timer assembly cycles the refrigerator between cooling and defrost modes to prevent excess frost buildup and help maintain consistent temperatures. Replace a failed timer to restore regular defrost scheduling and reduce icing. What it does:

• Advances the refrigerator between cooling and defrost cycles on a timed schedule.
• Stops missed defrosts that can cause frost buildup on the evaporator and reduced cooling efficiency.
• Addresses symptoms such as excessive frost/ice, inconsistent temperatures, or a freezer that runs constantly.
• Acts as the control that engages the defrost heater and returns the unit to cooling when the cycle finishes.

• Disconnect power to the appliance before servicing to avoid shock or injury.
• Access the timer via the control panel or rear service area; document wiring or take photos before disconnecting.
• Install the timer in the same orientation and reconnect wires to the original terminals; do not force connectors.