Fisher & Paykel
User Interface Lockup / Control Failure
Control panel unresponsive; cannot change temperature or turn unit on/off, but display may be lit.
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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
Software glitch in control board, failed touch keypad, damaged UI ribbon cable, main PCB communication fault
How to Fix / Troubleshooting
Safety: Unplug the unit before removing the control panel.
Steps to restore control:
- Power reset: Disconnect power for at least 5 minutes, then restore and test the controls.
- Check for control lock feature: Some models have a child lock. Refer to the user manual to unlock if applicable.
- Inspect keypad and cable: Remove the control panel and check the keypad board and ribbon cable for damage. Reseat connectors.
- Replace UI or main PCB: If the keypad is unresponsive despite good connections, replace the user interface board. If that fails, the main control board may need replacement.
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Repair Difficulty
Medium
3/5
Required Part
User Interface Board / Main Control Board
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