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1) Increase combustion air.
2) Clean or replace it.
3) Clean them.
4) Bring it to the prescribed value.
1) Clean or replace it.
2) Check all smoke circuits inside the boiler and
the chimney.
3) Replace the control-box.
4) To be cleaned.
1) Check the circuit completely.
2) Replace them.
3) Fasten them.
4) Replace it.
5) Adjust them to the prescribed position.
6) Clean or, if necessary, replace them.
1) Check the feeder line.
2) Repair or replace it.
3) Check the suction pipe.
4) Fill with fuel.
5) Open it.
6) Disassemble and clean it completely
7) Invert a phase in the input switch.
1) Increase the value or wait for them to close by
natural decrease in temperature or pressure.
2) Replace it.
3) Close the contact of the switches or wait for
voltage to be supplied again.
4) Check thermo-stat connections.
5) Replace it.
1) Bring it to the expected value.
2) Decrease combustion air.
3) Clean or replace it.
4) Discharge it from the tank by using a suitable
pump (never use the burner pump to carry
out this operation).
LIGHT OIL BURNER
MODEL SPARK
OPERATING ANOMALY
TYPE OF IRREGULARITY
PROBABLE CAUSE
RIMEDY
Not well-shaped
flame with smoke
and soot.
The controll-box stops
with flame (red light on)
The failure is
limited to the flame-controlling
device.
The control-box stops
the burner with fuel
spraying but no
flame (red light on).
The control-box stops
the burner without
spraying fuel (red light on).
The burner does not start.
Defective flame with sparks.
1) Insufficient combustion air.
2) Insufficient nozzie since it is dirty or worn out.
3) Clogged boiler pipe or chimney.
4) Low spraying pressure.
1) Photoresistance is cut off or
dirty with smoke.
2) Insufficient draught.
3) The photo-resistance circuit is broken.
4) Dirty disk or mouth.
1) The ignition circuit is broken.
2) The ignition transformer cables have dried over
time.
3) The ignition transformer cables are
not well connected.
4) The ignition transformer is cut off.
5) The electrode faces are not at theright distance.
6) Electrodes discharge to earth since they are dirty
or with a cracked insulation: also check under
the clamps fastening the insulating materials.
1) There is one phase missing.
2) Insufficient electric motor.
3) Light-oil does not reach the pump.
4) No light-oil inside the tank.
5) Closed gate-valve in suction pipe.
6) Clogged nozzle.
7) Motor (three-phase) rotating in the opposite
direction as that indicated by the arrow.
1) Open contact in (Boiler or room)
thermo-stats or pressure-switches.
2) Short-circuited photo-resistance.
3) There is no voltage because of the an open contact
in the main switch or the meter overload-release,
or no voltage in the line.
4) The thermo-stats line was not carried out according to the
diagram or thermo-stats did not close their contacts.
5) Failure inside the control-box.
1) Spraying pressure is too low.
2) Too much combustion air.
3) Insufficient nozzle since it is dirty
or worn out.
4) Water in fuel.
