Viessmann VITOFLAME 200 Service Instructions Manual page 21

Diagnosis
(cont.)
Fault/system characteristics
Burner sooty
CO content too low
2 2
Flue gas temperature too high g p
Burner operates
Flashing code Cause of fault
red
at LMO 14
Too little or too much air
Insufficient chimney
draught
Nozzle faulty
Flame tube attachment is
missing (for 15 to 33 kW)
Incorrect setting
Infiltrating air
Oil consumption too high
g
Boiler contaminated
Turbulators are missing
from boiler
Constant light Interface diagnosis
flicker
Troubleshooting
Check
Correct setting
Check and clean impeller
Check boiler room ventilation
Check flue and flue gas baffles
Replace nozzle and install correct nozzle
(see page 22)
Install flame tube attachment
(for 15 to 33 kW)
Check setting (see page 22)
Seal flue pipe at boiler adaptor
Tighten fixing screws on the combustion
chamber cover and flue gas cover
Match oil flow to rated output of boiler
Clean boiler and correct burner
settings
Install turbulators
Press reset button > 3 s
21