F12
Hotpoint Communication Error Between Main Board and User Interface

Dishwasher shows F12; display or control panel may be unresponsive or flickering.

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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 UI harness connector,Faulty user interface PCB,Main control board communication failure,Moisture in door electronics

How to Fix / Troubleshooting

Safety first: Disconnect power.

  • Inspect door electronics: Remove the inner door panel and check the user interface board and wiring for moisture or corrosion.
  • Check connectors: Reseat the harness connectors between the UI and main PCB.
  • Dry any moisture: If condensation or leaks are present, dry thoroughly and address the source of moisture.

If F12 persists, either the UI board or main control board may need replacement by a professional.

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Repair Difficulty

Hard 4/5

Required Part

User Interface Board
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