Whirlpool Dishwasher F9-E1 Error Code

Diverter Error
Drain Error

The electronic control board can’t detect the position of the diverter valve.
24″ Microfiltration Dishwashers (square sump) – Not draining. If F7E1 or F7E4 is also recorded the wash pump may be at fault. The control uses the wash motor signal to verify drain so a failed wash motor can cause a drain fault to be detected. 


Whirlpool Dishwasher F9-E1 Error Code Error Code Possible Causes

• The diverter valve is defective.
• The diverter valve position switch is defective.
• Loose wire connectors.
• The main PCB is defective.

24″ Microfiltration Dishwashers (square sump)

• The drain pump is defective.
• The drain pump is clogged.
• The drain hose is clogged.
• Loose wire connectors.
• The Main PCB is defective.
• Wash motor problem if F7-E1 is also recorded. Control uses wash motor signal to verify drain so a failed wash motor can cause a drain fault to be detected.

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This information is provided for educational purposes only. Please consult the appropriate Service Mode or Technical Document for your model. Always take proper safety precautions when installing or repairing any major appliance.