E15
FAAC
Partial Input Logic Fault (Open/Close Separation)
Display shows E15; door opens but will not respond to close commands from certain inputs.
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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
Misconfigured open/close inputs, Stuck open command from external device, Faulty relay on FAAC board controlling close direction, Wiring error on key switch
How to Fix / Troubleshooting
Safety: Ensure the door is secure and area is clear before testing.
- Review wiring diagram: Compare actual wiring of open, close, and step-by-step inputs to the FAAC manual. Correct any miswired terminals.
- Test each input: Use a short jumper wire to momentarily bridge the open, close, and step-by-step terminals individually and observe the response.
- Disconnect external controls: Remove wires from external open-only or close-only devices (key switches, access control). If E15 clears, the external device is faulty.
- Check board relays: Listen for relay clicks on the FAAC board when a close command is given. No click may indicate a failed relay or driver circuit.
- Replace control board if needed: If wiring and external devices are correct and E15 persists, the logic section of the board may be defective.
Label all wires before removal to avoid confusion during reinstallation.
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Repair Difficulty
Hard
4/5
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