34
UK
FAULT FINDING
PROBLEM
PROBABLE CAUSE
SOLUTION
Motor does not work
No power supply
1. Check fuses
2. Check thermostats
Motor works but there
is noflame formation
and with
1. Electrodes are not discharged 1. Check correct position of
tipsand clean them
2. Nozzle is dented
2. Clean or replace nozzle
3. There is no fuel
3. Check Light Oil level in tank
and that there are no shutters
closed along the Light Oil
line.
The burner starts.
There is the formation
of the flame and then
stops in block
1. Photoresistance is dirty
1. Clean the photoresistance
2. Nozzle is pulverizing badly
2. Clean or replace nozzle
Flame is irregular and
small
1. Nozzle is pulverizing badly
1. Clean or replace nozzle
2. Pump pressure is too low
2. Extract water from tank and
clean the filter
3. There is water in the light oil
fuel
3. Fare togliere l’acqua dalla
cisterna e pulire i filtri
La fiamma è fumosa
1. Nozzle is pulverizing badly
1. Clean or replace nozzle
2. Little combustion air
2. Check atmospheric air flap
opens normally. Check that
fan
