Motor Error or Heater Error
F4-E3
Communication error between the electronic control board and the wash pump motor
24″ Microfiltration Dishwashers (square sump) – Heater relay stuck closed.
Whirlpool Dishwasher F4-E3 Error Code Error Code Possible Causes
- The wash pump is stuck or jammed by a foreign object.
- The wash pump is defective.
- The main PCB is defective.
- The inverter PCB is defective.
24″ Microfiltration Dishwashers (square sump)
- The main PCB is defective.
- Heater component shorted to ground
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