32Anom-alyType ofanomaly Description Possible causes ActionsHtd Stops oven Drain temperatureabove safety limitPossible lack of water in thedrain system. • Check that the oven has water supply;• Pour some water on the bottom cavity filter;• Wait for the alarm to blink off;• If the problem persists, call Service.LPIn StopscycleBoiler level sensorproblem • Humid lime shortcuttingboiler level sensors.• Insulation issues with theboiler level sensorsThe oven can continue to operate in convectionor in ISG mode.• There is a problem with the water level in theboiler: run a cleaning program including therinse and descale cycle and use 2 tabs C25only. (Follow the procedure as per UserManual);• If the problem persists, call Service.MCbM Stops oven Lower inverter commu-nication problem • Issue with the motorinverter;• Connection or electricalissue.Communication error with lower cavity motorinverter.• Try to switch the oven OFF/ON.• If the problem persists, call Service.MCtM Stops theovenUpper inverter commu-nication problem • Issue with the motorinverter;• Connection or electricalissue,Communication error with upper cavity motorinverter.• Try to switch the oven OFF/ON.• If the problem persists, call Service.PFAC Stops oven Factory parametersmap corruptedIssue with the SW or withthe HW • Try to switch the oven OFF/ON.• If the problem persists, call Service.SbbU Stopsboiler gasBoiler gas fan speedissue • Burner blower motoroverload due to dirt oroxidation;• Other electrical/mechani-cal issue.Burner fan does not reach the desired speed.Call Service.SbCd StopscycleCavity lower gasburner blower speedissue• Burner blower motoroverload due to dirt oroxidation;• Other electrical/mechani-cal issue.Burner fan does not reach desired speed.Call Service.SbCU Stopscycle/convectionCavity upper gasburner blower speedissue• Burner blower motoroverload due to dirt oroxidation;• Other electrical/mechani-cal issue.Burner fan does not reach desired speed.Ovens with boiler can cook in 100℃ steammode. To restore full oven functionality callService.SLUS StopsboilercyclesWater boiler workinglevel not reached intime• Water supply valveclosed or partly closed;• Temporary lack of watersupply pressure;• Boiler water level sensorfailure;• Boiler leakage: drainvalve or fracture.• Ensure the water supply valve is fully openand the water filter has no obstructions. Cleanit if needed;• The oven can continue to work in Convectionmode;• Unless the water is missing from the mains,the oven can continue to work in recoverymode• Call Service to restore boiler functionality.If the fault persists after carrying out the above checks, contact the Customer Care Service, remembering to specify:A. the type of fault;B. the appliance PNC (production number code);C. the Ser. No. (appliance serial number).NOTE!The appliance PNC and serial number are essential for identifying the type of appliance and date of manufacture: