Flame monitor
â–¶ How to fix
Check that the pipes for auxiliary heater air supply and air venting are not blocked.Check the flame monitor.Check the fuel supply.Instructions for the checking procedures are found in the work description in Multi under 18-90 "H13, ATA Auxiliary heater - Air".
What you'll see
No driver-visible symptom recorded.
System reaction
No system-reaction text recorded.
Diagnostic depth
Detection
The flame monitor has detected a temperature above 280°C for ATA 1, or 290°C for ATA 2.
Possible cause
Blocked air supply to the auxiliary heater, cold air. Blocked air vent from the auxiliary heater, heated air.Fault in flame monitor, fuel supply or control unit.