baltur COMIST 20 Installation, Use And Maintenance Instruction Manual page 71

ANOMALY
The burner goes to shut down
spraying liquid fuel but without flame
presence. (Red light on).
The burner goes into "lock-out", gas
flows, but there is no flame (red light
on).
Noisy burner pump.
POSSIBLE CAUSE
1 Pump pressure is not regular.
2 Water in the fuel.
3 Too much combustion air.
4 Air passage between deflector disk
and diffuser excessively closed.
5 Nozzle worn out or dirty.
1 Air - gas ratio incorrect.
2 Gas pipe has not been properly bled
of air at the first ignition.
3 The gas pressure is insufficient or
excessive.
4 Air passage between deflector disk
and diffuser too closed.
1 Pipe diameter too small.
2 Air infiltration in the pipes.
3 Dirty fuel filter.
4 Excessive distance and/or
difference in level between the
tank and the burner or numerous
accidental leakages (elbows, curves,
bottlenecks, etc.)
5 Deteriorated flexible pipes.
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REMEDY
1 Adjust.
2 Drain water from the tank using a
suitable pump. Never use the burner
pump for this purpose.
3 Reduce combustion air.
4 Correct the position of the combustion
head adjusting device.
5 Clean or replace.
1 Correct the air - gas ratio.
2 Bleed the gas pipe again, with due
caution.
3 Check the maximum gas pressure
value at the time of ignition (use a water
pressure gauge, if possible).
4 Adjust the deflector disk - diffuser.
1 Replace it according to the instructions.
2 Check and eliminate infiltrations.
3 Remove and wash.
4 Adjust the length of the suction pipe to
reduce the distance.
5 Replace.
ENGLISH