Tosot Evaporator Coil Icing

Dehumidifier frequently freezes up with ice covering most of the evaporator coil.

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

Room temperature too low, Restricted airflow from dirty filter or coils, Low refrigerant charge, Faulty defrost sensor or control

Steps:

Thaw unit: Turn off and unplug the dehumidifier. Allow all ice to melt completely; place towels underneath.
Clean airflow path: Wash the filter and vacuum both coils.
Check room temperature: Move the unit to a warmer room (above 65°F / 18°C) and test again.
Sensor check: Inspect and test the evaporator/defrost sensor. Replace if readings are incorrect.
Persistent icing: If icing continues despite good airflow and correct sensor operation, a refrigerant issue may exist; contact a technician.

Medium 3/5

Evaporator / Defrost Sensor

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