E43
Frigidaire
Door Lock Control Circuit Failure
Washer-dryer combo will not start or lock the door; E43 displayed shortly after pressing Start.
Advertisements
Safety Warning
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.
Advertisements
Possible Causes
Failed door lock triac on main control board, Shorted door lock coil, Damaged wiring harness between control and lock
How to Fix / Troubleshooting
Safety first: Disconnect power before accessing the control board or door lock wiring.
- Check door lock assembly: Test the lock coil resistance with a multimeter (refer to Frigidaire specs). A shorted or open coil can damage the control triac.
- Inspect wiring harness: Follow the harness from the lock to the control board, looking for pinched, cut, or burned wires. Repair or replace as needed.
- Inspect main control board: Remove the top or rear panel to access the board. Look for burned components near the door lock output. If damage is visible, the board must be replaced.
- Replace failed parts: Replace a shorted door lock assembly first, then replace the main control board if E43 persists.
Because this involves board-level electronics, many users choose professional service.
Advertisements
Repair Difficulty
Hard
4/5
Required Part
Main Control Board
Check Price on Amazon
We may earn a commission from links on this page.
Advertisements