E20 error; freezer may not run after a power outage.

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

Corrupted control initialization, Damaged control board from surge, Loose main harness connector, Internal board fault

Safety: Turn off power at the breaker and unplug the unit before accessing electronics.

Steps:

Extended reset: Leave the freezer unplugged for at least 30 minutes to fully discharge the control board.
Inspect wiring: Access the control compartment and check that all harness connectors are fully seated.
Check for surge damage: Look for burnt or cracked components on the board. If present, replace the board.
Replace control board: If E20 returns immediately after reset and wiring is sound, install a new OEM Westinghouse main control board.

Medium 3/5

Main Control Board

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