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uo
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Frigidaire · Dishwashers
Vent Open Failure - Drying Vent Not Opening
Quick Answer
Error code UO on your Frigidaire Dishwashers means: Vent Open Failure - Drying Vent Not Opening. This is usually fixable — see the step-by-step guide below.
Likely Causes
  1. Vent actuator motor or wax motor has failed
  2. Vent mechanism is physically stuck due to food residue or detergent buildup
  3. Wiring to the vent actuator is disconnected or damaged
  4. Control board output for the vent circuit is not functioning
How to Fix It
1
Locate the drying vent on the inside of the door panel or top of the tub
2
Manually push the vent open to check if it moves freely or is obstructed
3
Clean any detergent residue or food buildup from around the vent mechanism
4
Test the vent actuator motor for continuity with a multimeter
5
Replace the vent actuator or assembly if the motor has failed or the mechanism is permanently stuck
Pro Tip
This fix requires some technical knowledge. If you're unsure about any step, consider contacting support or a qualified technician.
Parts You May Need
Vent actuator/wax motor (model-specific)
Vent assembly
Related Error Codes
i10i20i40i30i50
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