A generic alphanumeric fault code appears on the display in the format FX/EXX see operating instructions together with the serial number (FN or SN depending on model).
Various internal situations can trigger this message, including sensor faults, control-board errors, heater anomalies, or communication failures between subsystems.
| Possible Cause | How to Fix |
|---|---|
| Sensor fault, control-board error, heater anomaly, or internal communication failure | Power-cycle the appliance; if persistent, call Customer Services |
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