Dishwasher displays F7E2; heater may be stuck on or overheating; plastic items may warp or there may be a hot smell.

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.

Possible Causes

Shorted heater relay on control board, Shorted heater wiring, Failed temperature sensor

Safety First: Immediately turn off power at the breaker if you suspect overheating.

Inspect control board: Remove the toe-kick and control board cover. Look for a welded or burnt heater relay.
Check heater wiring: Inspect heater wires for melted insulation or shorts to ground.
Test temperature sensor: If equipped, test the NTC/temperature sensor for proper resistance. Replace if out of spec.
Replace control board: If the heater relay is stuck closed or burnt, replace the main control board.

Professional Required 5/5

Main Control Board or Heating Element Wiring

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