Freezer fan hitting ice - Recurrent ice buildup, defrost component issue

What does Freezer fan hitting ice mean?

The freezer fan is making noise because its blades are hitting accumulated ice, requiring manual defrosting every few months. This pattern suggests the automatic defrost system is failing to prevent ice buildup.

• Defective defrost heater or thermostat
• Clogged defrost drain line
• Faulty defrost sensor (thermistor)
• Ineffective control board defrost cycle management

Click steps to track your progress.

1. 1

   Unplug the Refrigerator and perform a thorough manual defrost for 24-48 hours with the freezer door open.

2. 2

   Access the defrost drain line, usually behind the freezer back panel, and ensure it's clear of obstructions.

3. 3

   Inspect the freezer door seal for any gaps or damage that allows warm, moist air into the freezer.

4. 4

   If the issue reoccurs quickly, a qualified technician should test the defrost heater and defrost sensor/thermostat.