Frigidaire Dishwasher Error Codes

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📋 Error Code Index — Frigidaire Dishwasher

ERStuck Relay / Heating Fault LOLow Rinse Aid HOWater Temperature Too Low PFPower Failure CFCommunication Fault UOVent Fan Fault

Stuck Relay / Heating Fault

Control board relay stuck or heating circuit fault detected.

High Priority

Possible Causes
Relay on control board welded closed or open
Heating element shorted to ground
Control board internal fault
Diagnostic Steps
1Disconnect power immediately if oven is overheating
2Test heating circuit with power off
3Replace control board if relay fault confirmed

Low Rinse Aid

Rinse aid dispenser is empty or nearly empty — not a fault code.

Low Priority

Possible Causes
Rinse aid reservoir empty
Dispenser cap not seated correctly
Diagnostic Steps
1Refill rinse aid dispenser
2Ensure dispenser cap is correctly seated
3Reset by running a short cycle

Water Temperature Too Low

Incoming water temperature below recommended minimum for wash cycle.

Low Priority

Possible Causes
Hot water supply temperature below 120°F
Hot water heater set too low
Long distance from water heater — cold water in line
Diagnostic Steps
1Run hot water at sink before starting dishwasher
2Check water heater temperature setting — 120°F recommended
3Allow hot water to reach appliance before cycle start

Power Failure

Power interruption was detected during a previous cycle.

Low Priority

Possible Causes
Brief power outage or interruption during operation
Circuit breaker tripped
Loose connection at outlet
Diagnostic Steps
1Press Cancel to clear the code
2Check circuit breaker and outlet
3Restart cycle — no repair typically needed

Communication Fault

Communication error between main board and control panel.

High Priority

Possible Causes
Wiring harness loose between boards
Control panel failed
Main control board failed
Diagnostic Steps
1Check wiring harness connections
2Power cycle unit 60 seconds
3Replace control panel or main board as indicated

Vent Fan Fault

Vent fan motor not operating during drying cycle.

Medium Priority

Possible Causes
Vent fan motor failed
Wiring to fan motor open
Fan blade obstructed
Diagnostic Steps
1Check fan blade for obstruction
2Test fan motor winding continuity
3Replace vent fan motor if failed

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Important Notice: Error code information on this page is based on Frigidaire manufacturer service documentation. Always disconnect power and water supply before inspecting. Fault behavior may vary by model year. AppliancesCare Appliance Repair LLC provides this information for educational purposes only.