Haier Airflow Restriction / Evaporator Frost Block

Freezer runs continuously and is still not cold enough.

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Safety Warning

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.

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Possible Causes

Defrost heater failure, Defrost thermostat stuck open, Blocked air passages by ice or food, Door gasket leaking warm air

How to Fix / Troubleshooting

Safety first: Unplug the freezer. Water from melting ice can create slip and shock hazards—use towels.

  • Inspect evaporator: Remove inner rear panel and check for heavy ice buildup on the evaporator coil. A solid ice block indicates defrost failure.
  • Manual defrost: Fully defrost the unit by leaving it unplugged with doors open for 24 hours or using a hair dryer on low (do not overheat plastic). Protect the floor from water.
  • Test defrost components: After defrosting, test the defrost heater and thermostat/fuse for continuity. Replace any open components with Haier-approved parts.
  • Check gasket: Inspect and replace a damaged door gasket to prevent warm, moist air from entering and causing excessive frost.
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Repair Difficulty

Medium 3/5

Required Part

Defrost Heater Assembly
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