Monogram Air Infiltration / Defrost System Issue

Excessive frost buildup on back wall or on food items; freezer appears very icy.

This repair may involve working with high voltage components or water connections. Always unplug the appliance before removing any panels.

If you are not confident in your ability to perform this repair safely, we strongly recommend contacting a professional technician.

Possible Causes

Door gasket leaking, door frequently left open, failed defrost heater, failed defrost thermostat or sensor

Safety: Unplug the freezer before defrosting or accessing electrical components.

Check gasket and usage: Inspect the door gasket and ensure the door is not being left open for extended periods.
Manual defrost: Remove food, unplug the unit, and allow all frost to melt. Use towels to absorb water.
Test defrost components: If frost quickly returns on the evaporator, test the defrost heater and defrost thermostat as described in E4.

Medium 3/5

Defrost Heater

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