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TROUBLESHOOTING
6
OBSERVED FAULT
The fan does not come on and the flame
does not light
The fan comes on but the flame does
not light or does not remain lit
The fan comes on and the flame lights,
but produces smoke
The heater does not switch off
The fan does not switch off
GB
POSSIBLE CAUSE
1 No electric current
2 Incorrect setting on the control mecha-
nism (if fitted)
3 Faulty control mechanism
4 Motor winding burnt out or broken
5 Bearings of motor have seized up
6 Motor condenser has burnt out
1 Ignitor is not functioning
2 Faulty flame cut out mechanism
3 Non-functioning photoelectric cell
4 Fuel is not reaching the burner or a suffi-
cient amount is not arriving
5 Electric valve is not functioning
1 Insufficient air for combustion
2 Too much air for combustion
3 Fuel is dirty or contains water
4 Air has filtered into the fuel circuit
5 Inadequate quantity of fuel in burner
6 Too much fuel in burner
1 Defective electric valve seal
1 Faulty fan thermostat
SOLUTION
1a Check the characteristics of the electrical
system (230V - 1~ - 50 Hz)
1b Check that the switch works and is in the
correct position
1c Check that the fuse has not blown
2 Check that the control mechanism setting is
correct (e.g. the temperature setting on the
thermostat must be higher than the ambient
temperature)
3 Replace the control mechanism
4 Replace the motor
5 Replace the bearings
6 Replace the condenser
1a Check the connections of the ignition cables
to the electrodes and transformer
1b Check the position of the electrodes and the
distance between them, in accordance with the
diagram on page 8
1c Check that the electrodes are clean
1d Replace the ignition transformer
2 Replace the mechanism
3 Clean or replace the photoelectric cell
4a Check that the connection between the
pump and the motor is intact
4b Check that air has not filtered into the fuel
circuit, checking the tubes and the filter seal
4c Clean or, if necessary, replace the nozzle
5a Check the electrical connection
5b Check the LI thermostat
5c Clean or, if necessary, replace the electric
valve
1a Remove anything blocking or obstructing the
aspiration and/or airflow ducts
1b Check the position of the air regulation ring
1c Clean the burner disc
2 Check the position of the air regulation ring
3a Replace the fuel with clean fuel
3b Clean the fuel filter
4 Check the condition of the tubes and the seal
of the fuel filter
5a Check the pump pressure
5b Clean or replace the nozzle
6a Check the pump pressure
6b Replace the nozzle
1 Replace the electric valve part
1 Replace the FA thermostat
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