Frigidaire Refrigerator RT219MCD1 Fridge runs too long

Refrigerator not cooling but freezer icing up? The defrost timer controls the defrost cycle. Most DIYers replace it in 5-15 minutes with our video guide.

The Defrost Thermostat is an OEM part for Frigidaire refrigerators. It monitors the temperature of the evaporator coils and activates the defrost heater when necessary. This process prevents frost buildup on the coils, ensuring the refrigerator maintains optimal cooling efficiency.

You should replace the defrost thermostat if it becomes faulty or damaged. Common causes of a bad defrost thermostat include electrical failures, regular wear and tear, or temperature fluctuations that can degrade the component over time.

Symptoms of a bad defrost thermostat include:

• Excessive frost buildup on the evaporator coils
• Refrigerator not cooling properly
• The defrost cycle not activating
• Increased energy consumption

This OEM replacement is also compatible with Electrolux, Gibson, Kelvinator, and Kenmore models.

The Refrigerator Door Gasket is an OEM part for Frigidaire refrigerators. This gasket forms a seal around the refrigerator door, ensuring that cold air stays inside and warm air remains outside, maintaining the appliance's efficiency and keeping food fresh.The gasket measures approximately 44.6" X 30.69"

Causes of a bad door gasket can include regular wear and tear, mold or mildew buildup, and physical damage from repeated opening and closing of the door. 

Symptoms of a bad refrigerator door gasket include:

• Warm air entering the refrigerator, causing it to run more frequently
• Condensation or frost buildup inside the refrigerator
• Difficulty keeping the door closed
• Visible cracks, tears, or deformation in the gasket

This OEM Frigidaire part is also compatible with Electrolux, Gibson, Kelvinator and some Kenmore models.