F9
Fisher & Paykel Electronics / Power Supply Fault

DishDrawer or dishwasher displays F9; may not drain or may overfill.

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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

Internal control board power supply failure, Shorted component on control board, Wiring short to ground, Moisture on control PCB

How to Fix / Troubleshooting

Safety first: Disconnect power immediately. Do not continue to run the unit with an F9 fault.

  • Inspect for moisture: Remove the kick panel or front panel (if safe) and look for signs of water ingress near the control board. Dry any moisture with towels and allow the area to air dry completely.
  • Check wiring harness: Look for burnt, pinched, or damaged wires that could cause a short.
  • Power reset: After drying and inspection, restore power and test. If F9 reappears quickly, disconnect power again.

Persistent F9 faults almost always indicate a failing main control board. Replacement is recommended and should be done by a qualified technician.

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Repair Difficulty

Professional Required 5/5

Required Part

Main Control Board
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