Washer displays E77 and may not start heating cycles.

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

Heater element shorted to ground, Damaged heater wiring touching cabinet, Moisture causing leakage current, Faulty ground fault detection on control

Safety First: Unplug the washer. Do not operate with a suspected ground fault.

Inspect heater and wiring: Look for insulation damage or contact with metal parts.
Megger test (if available): Use an insulation tester to check heater to ground. Replace heater if leakage is detected.
Control board: If no ground fault is found but E77 persists, the control's detection circuit may be faulty and the board should be replaced.

Hard 4/5

GE Heater Element, GE Main Control Board

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