Display shows ER 5Y or 5Y CF, refrigerator may not cool correctly and fans may not run.
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.
Possible Causes
How to Fix / Troubleshooting
Safety: Turn off power at the breaker before accessing control boards.
This code indicates a communication failure between the user interface/display and the main control board.
- Power reset: Turn off the breaker or unplug the unit for 5 minutes, then restore power. Sometimes this clears transient communication faults.
- Inspect top hinge and door harness: On many Dacor French-door models, the display wiring passes through the top hinge. Remove the hinge cover and check for pinched or broken wires.
- Check display board connections: Remove the display/control panel (usually on the door) and verify the ribbon cable and connectors are fully seated.
- Inspect main PCB connections: Access the main control board compartment (often at the rear, behind a metal cover). Confirm the communication harness is secure.
If the error persists after reseating all connectors, either the display PCB or main control board will need replacement. This is typically a technician-level repair.
Repair Difficulty
Required Part
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