F15
Fisher & Paykel Heater Fault / Heating Circuit Failure

DishDrawer or dishwasher displays F15; unit may not start or may stop with error.

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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

Open-circuit heater plate, Faulty heater relay on control board, Burnt wiring to heater, Temperature sensor misreading

How to Fix / Troubleshooting

Safety first: Disconnect power before any electrical testing.

  • Check for hot water: Confirm that the dishwasher is supplied with hot water (not cold only). Very cold supply can prolong heating and trigger errors.
  • Inspect wiring: Access the underside and locate the heater plate or heating element. Check for burnt connectors or damaged wires.
  • Test heater resistance: Using a multimeter (if qualified), measure the resistance of the heater. An open circuit indicates a failed heater.

If the heater is open or wiring is burnt, replace the heater plate / heating element. If the heater tests good, the control board heater relay may be defective.

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Repair Difficulty

Professional Required 5/5

Required Part

Heater Plate / Heating Element
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