Frigidaire Evaporator Freeze-Up

Evaporator coil repeatedly freezes over with ice, causing poor or no airflow.

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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

Dirty air filter, low indoor fan speed due to failing motor, low refrigerant charge, thermostat sensor mispositioned on coil

How to Fix / Troubleshooting

Safety: Unplug the unit and allow all ice to melt before servicing. Place towels to catch water.

Steps:

  • 1. Clean filter and coil: Ensure the filter is clean and the evaporator coil is free of dust.
  • 2. Check fan operation: Verify that the indoor fan runs at full speed. Replace the fan motor or capacitor if weak.
  • 3. Sensor placement: Ensure the evaporator thermistor is properly clipped to the coil, not hanging in the air, so the control can detect freezing conditions.
  • 4. Professional refrigerant check: If freeze-ups continue despite good airflow and sensor placement, a low refrigerant charge may be the cause. Contact a licensed technician.
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Repair Difficulty

Hard 4/5

Required Part

Indoor Fan Motor
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