49
Fault
code
*1
Display
System charac-
teristics
Cause
Measure
01, 02, 05
to 0d, 0F,
14, 15, 17,
1A to 1c,
1E, 45, 47,
Ac, b0
01, 02,
05 to 0d,
0F, 14,
15, 17,
1A to 1c,
1E, 45,
47, Ac,
b0
Fault in area of
burner control unit
Internal system
fault and EMC
Replace burner
control unit
EMC measure: try
connecting to
another phase
F 0E, F
F 0E, F
Fault in area of
burner control unit
EEPROM or inter-
nal system fault;
EMC fault
Have your system
tested for EMC
interference;
replace burner
control unit
1d
1d
Fault in area of
burner control unit
Processor
crashed
Have your system
tested for EMC
interference;
replace burner
control unit
03
03
Fault in burner
control unit
Excessive tem-
perature
(> 60 °C)
Check ambient
temperature
Faults without fault display
Fault
Cause
Measure
Combustion fault
through pulsation
Excessive gas
throughput
Adjust gas throughput in accordance
with rated boiler output
Too little or too much
air
Adjust gas throughput in accordance
with rated boiler output
Condensate banked
up in flue gas sys-
tem
Check condensate drain
Incorrect flue
draught
Check flue draught
Whining noises
Incorrect CO
2
set-
tings; air shortage or
excess
Adjust burner in accordance with the
details on page 14
*1
All fault codes are saved to the fault memory and the last 10 can be called up.
Troubleshooting
Diagnosis
(cont.)
5692 908 GB