DeDietrich AFC 30 User Manual page 38

7. Troubleshooting
Code Faults
L00 PSU FAIL
L01 PSU PARAM FAIL
L02 STB OUTLET
L03 DEF.OIL.SENSOR
L04 BURNER FAILURE
L05 DEF.INTERNAL
L06 DEF.SPEED.MOT
L07 DEF.T.WARM UP
L08 PARASIT FLAME
L09 OIL.PRES FAIL.
37
Cause Description
of the
fault
PCU The PSU integrated in the SU is
defective
PCU The safety parameters are incorrect Parameters faulty
SU Boiler temperature too high
SU The oil pressure measurement
sensor is faulty
SU Burner start-up failure
SU Internal SU fault
SU Fault on the burner motor
SU Preheating period exceeded
SU Detection of a parasite flame
SU Oil pressure over limit
AFC 18 - AFC 24 - AFC 30
Checking / solution
Parameters faulty
Contact the professional who takes care of
4
maintenance of the appliance
Contact the professional who takes care of
4
maintenance of the appliance
Bad connection
Sensor fault
Contact the professional who takes care of
4
maintenance of the appliance
No water circulation
Vent the air in the heating system
4
Check the circulation (direction, pump,
4
valves)
Check the water pressure
4
Bad connection
The oil pressure measurement sensor is faulty
Contact the professional who takes care of
4
maintenance of the appliance
No ignition
Contact the professional who takes care of
4
maintenance of the appliance
No flame signal.
Air present in the oil circuit.
Check that the oil valve is actually open
4
Contact the professional who takes care of
4
maintenance of the appliance
Presence of the flame but insufficient ionization
(<3 µA)
Check that the oil valve is actually open
4
Contact the professional who takes care of
4
maintenance of the appliance
The safety control box on the burner is defective
Contact the professional who takes care of
4
maintenance of the appliance
The safety control box on the burner is defective
Contact the professional who takes care of
4
maintenance of the appliance
The burner motor is defective
Contact the professional who takes care of
4
maintenance of the appliance
The reheat fuel oil is defective
Contact the professional who takes care of
4
maintenance of the appliance
The safety control box on the burner is defective
Contact the professional who takes care of
4
maintenance of the appliance
Signal present whilst there is no flame
Contact the professional who takes care of
4
maintenance of the appliance
Contact the professional who takes care of
4
maintenance of the appliance
15/07/2015 - 300026440-05