UF
Frigidaire Professional
Vent Fan Speed / Feedback Fault
Dishwasher displays UF; drying performance is poor and fan may be noisy or not run.
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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
Weak or failing vent fan motor, Blocked vent outlet, Faulty fan speed sensor or tachometer, Wiring issue between fan and control board
How to Fix / Troubleshooting
Safety First: Turn off power at the breaker before servicing the door area.
- Clean vent outlet: Inspect the vent outlet on the inner door for lint, food residue, or mineral buildup. Clean with a soft brush and warm soapy water.
- Check fan operation: Access the vent fan assembly behind the inner door panel. Spin the fan by hand; it should move freely without grinding.
- Inspect wiring and connector: Ensure the fan connector is tight and free of corrosion. Repair any damaged wires.
- Replace fan if noisy or slow: If the fan is loud, wobbly, or slow to start, replace the vent fan assembly.
- When to call a technician: If a new fan does not resolve the UF code, the control board’s fan feedback circuit may be faulty and should be tested by a professional.
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Repair Difficulty
Medium
3/5
Required Part
Vent Fan Assembly
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