Error code reference
Frigidaire Dishwasher Error Code uo
The control does not receive proper indication that the vent is closed; after 5 attempts to reseat the vent…
The control does not receive proper indication that the vent is closed; after 5 attempts to reseat the vent, the failure appears and the cycle will not start.
First step from the service manual
Check vent door assembly and optical sensor for proper operation.
The complete diagnostic procedure includes additional test steps, resistance specifications, wiring diagram references, and component test points.
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- Step-by-step tests with expected resistance, voltage, and continuity values
- Wiring diagram references and connector pinouts from the OEM service manual
- Verified part numbers when replacement is required
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