E12
Fagor
Program Selector / User Interface Communication Fault
Dryer shows E12; cycle may not start or may stop; often related to sensor drying programs.
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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.
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Possible Causes
Loose connection between UI board and main PCB, Faulty program selector knob or encoder, Damaged UI PCB, Corrupted communication bus
How to Fix / Troubleshooting
Safety first: Disconnect power before removing the control panel. Avoid flexing ribbon cables excessively.
- Inspect selector knob: Check that the program knob is not cracked and that it engages the shaft properly. Replace the knob if it slips or is broken.
- Access UI board: Remove the control panel fascia. Inspect the user interface PCB and its connectors to the main control board.
- Reseat cables: Carefully unplug and reinsert ribbon cables and harness connectors between the UI and main PCB. Ensure they are fully latched.
- Check for moisture or corrosion: Look for signs of liquid ingress on the UI board. Clean minor corrosion with isopropyl alcohol; replace the board if damage is extensive.
- Test operation: Reassemble and power on. If E12 persists and other components test good, the UI PCB or main PCB may need replacement.
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Repair Difficulty
Medium
3/5
Required Part
User Interface Board
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