Display shows Er dH; unit may stop cooling after a prolonged defrost attempt.

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

Heavy frost preventing proper defrost, Weak defrost heater, Failed defrost sensor, Control board not terminating defrost

Safety: Unplug the freezer before accessing internal components.

Er dH means the defrost cycle exceeded its time limit.

Manual defrost: Remove contents and rear panel, fully defrost the evaporator.
Inspect heater and sensor: Check for damage and test continuity.
Replace faulty parts: Install a new defrost heater or sensor as needed.
Check door seals: Ensure gaskets are sealing to reduce frost buildup.

If Er dH recurs, the main PCB may be mismanaging defrost and should be checked by a technician.

Hard 4/5

Defrost Heater Assembly

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