Whirlpool Dishwasher Error Code F9 E3 — Diverter Valve Error
What this means
The F9 E3 error code on Whirlpool dishwashers indicates the diverter valve — which directs water flow between the upper and lower spray arms — is not operating correctly. The valve may be stuck, the motor may have failed, or debris may be blocking the valve mechanism. Poor cleaning performance on one rack (usually the top) is a common symptom that accompanies this code.
Alternate codes: F9E3
Step-by-step fix
3 stepsCheck for debris in the diverter
Remove the lower spray arm by unscrewing or unclipping it. Remove the filter assembly. Look down into the sump area for the diverter valve — a disc or flap that alternates water flow. Check for food debris, glass, or other obstructions.
On some Whirlpool models, the diverter is inside the pump housing and requires more disassembly to access.
Test the diverter motor
Access the diverter motor from underneath the dishwasher. Disconnect the motor connector and test for resistance with a multimeter — it should show some resistance (not open). Also verify the motor shaft turns freely.
The diverter motor is a small DC motor that changes position during the wash cycle. If it buzzes but does not move, it is mechanically stuck.
Replace the diverter motor or valve assembly
If the motor is defective or the valve mechanism is damaged, replace the diverter motor or the entire diverter valve assembly. Remove the old motor, install the new one, and verify the valve moves between positions when power is applied.
Test the repair by running a wash cycle and verifying both upper and lower spray arms are getting water (check both racks for cleaning performance).
When to call a professional
If the diverter motor tests good but the error persists, the pump assembly or control board may need professional diagnosis.
Related error codes
Information compiled from manufacturer service manuals, official troubleshooting documentation, and appliance repair industry resources. This guide is for informational purposes only — always consult a qualified technician for complex repairs.
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