Sharp Evaporator Coil Icing

Frost or ice forming on the indoor coil or air outlet.

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

Low airflow due to dirty filters or fan issues, Low refrigerant charge, Very low indoor temperature setting, Faulty evaporator thermistor

Safety first: Turn off the unit and allow ice to melt naturally. Do not use sharp objects to remove ice.

Clean filters and coil: Restore proper airflow by cleaning filters and coil.
Fan operation: Ensure the indoor fan runs continuously in cooling mode. Repair or replace the fan motor if intermittent.
Adjust setpoint: Avoid setting the temperature extremely low relative to room temperature.
Refrigerant check: If icing recurs, have a technician check for low refrigerant and repair any leaks.

Hard 4/5

Indoor Evaporator Coil Thermistor / Refrigerant Circuit

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