Washer-dryer combo indicates heater relay failure; may not heat or may heat erratically.

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

Stuck or open heater relay on main control board, Burned relay contacts, Control board trace damage, Power surge

Safety first: Disconnect power before accessing the control board.

Verify heater circuit: Confirm that the heater element and thermostats are good (see E63 steps).
Inspect control board: Remove the control board and look for discoloration or burn marks near the heater relay.
Replace main control board: If the relay is defective, replace the entire Frigidaire main control board. Board-level relay replacement is not recommended for DIY.
Check wiring: Ensure heater wiring to the board is secure and not shorted.

Hard 4/5

Main Control Board

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