KitchenAid Frost Accumulation / Defrost System Issue

Frost or ice buildup on the back wall or around the evaporator

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

Defective defrost heater, Failed defrost thermostat, Door not sealing allowing moist air in, Blocked air vents causing localized freezing

Safety: Unplug the unit before defrosting. Do not use sharp tools to remove ice.

Step 1 – Manual defrost: Empty the cooler, unplug it, and leave the door open for 24 hours to melt all ice. Place towels to catch water.
Step 2 – Check door seal: After defrosting, inspect and correct any gasket issues to prevent warm, moist air infiltration.
Step 3 – Monitor: If frost returns within a week, the automatic defrost system may be failing. Test and replace the defrost heater and thermostat as needed (see E14).

Medium 3/5

Defrost Heater

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