Troubleshooting
21
Diagnosis
(cont.)
Fault/system characteristics
Flashing code
red
at LMO14
Cause of fault
Check
Burner sooty
Too little or too much air
Correct setting
Check and clean impeller
Check boiler room ventilation
Insufficient chimney
draught
Check flue and flue gas baffles
Nozzle faulty
Replace nozzle and install correct nozzle
(see page22)
Flame tube attachment is
missing (for 15 to 33 kW)
Install flame tube attachment
(for 15 to 33 kW)
CO
2
content too low
Incorrect setting
Check setting (see page22)
2
Infiltrating air
Seal flue pipe at boiler adaptor
Tighten fixing screws on the combustion
chamber cover and flue gas cover
Flue gas temperature too high
Oil consumption too high
Match oil flow to rated output of boiler
g
p
g
Boiler contaminated
Clean boiler and correct burner
settings
Turbulators are missing
from boiler
Install turbulators
Burner operates
Constant light
flicker
Interface diagnosis
Press reset button>
3
s
5692452 GB
