Skip to main contentStart diagnosing F3E3 on your Maytag refrigerator
What this code means
Inlet Thermistor Open - inlet thermistor is open, temperature below 18°F. Possible causes: Inlet thermistor failure; Wiring harness issue; CCU connection problem
Next steps: diagnose the root cause
1
Verify the error code is active
Power cycle the unit and see if the code returns. If it does, the fault is persistent and requires diagnosis.
2
Get the full diagnostic procedure
Get step-by-step guidance, test values, and wiring diagrams from the OEM service manual.
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What’s available for Maytag refrigerator models
Access Maytag refrigerator service manuals, wiring schematics, exploded parts views, and error code references on MyPros+.