0x0EF0E7, Multiple Flame Interruption
- check fuel supply - check air inlet and exhaust pipes - readjust CO2 value (CO2 scaling) - for further information see workshop manual - clear error memory
What you'll see
No driver-visible symptom recorded.
System reaction
- this DTC is stored in the error memory - heating operation is stopped - failure afterrun is initiated Heater Actions: * This DTC is an error * Temporary Interlock is activated * counter "FAZ / flame interruption counter" is incremented
Diagnostic depth
Enable Condition: This error is monitored during regular combustion operation, excluding starting and stopping phase. (LS.Internal.HeaterStateSimplified = HeaterBurnerActive) Mature Threshold: Exhaust gas temperature has fallen below the dynamic lower threshold limit. See diagnostic identifier "0xFD11 - exhaust gas temperature lower threshold". This DTC is reported by the heater core software. De-mature Criteria: Stable combustion reached after restart of heater: Heating request is switched off (HeaterModeRequest = DeactivateHeater) and on (HeaterModeRequest = NormalMode) and state HEATER RUNNING is reached
- flame interruption while regular combustion operation and internal automatic restart failed (bad fuel supply, air bubbles in fuel supply, blocked combustion air, worn burner, too lean combustion)