Trouble-Shooting Tables - ITM Italia V40 Manual De Instructiones

7.

TROUBLE-SHOOTING TABLES

PROBLEM
The generator does not start
The fan does not start
The fan starts but there is no
bustion (the RESET
push-button LED comes ON
after a few seconds)
The unit overheats during
normal operation
When the unit is switched off using
the main switch or the environment
thermostat, the fan does not operate
and the generator overheats
The unit discharges lightcoloured fumes - Excess air or poor fuel
The unit discharges dark fumes
The unit discharges dark fumes
CAUTION
Never halt the generator simply by removing the power plug. This would exclude
postcooling.
Never change the fuel oil pump pressure setting. This would modify all combustion
features.When replacing the nozzle, use a spare with an identical capacity to the nozzle
fitted by the manufacturer.
GB
CAUSE & REMEDY
Check:
- correct electrical connections - if the environmental thermostat is
fitted, make sure that it is not set too low
Check:
- motor power supply cable
- Check the fuel level - Make sure that the fuel oil filters are not c o m -
clogged
- Make sure that the nozzle is not obstructed
- Make sure that no air enters the fuel circuit:
- Dirty photo sensitive cell: remove from support and clean
- Flame control system faulty: replace - Make sure there is a spark be-
tween the electrodes. If this is not the case, check the position
of the electrodes, their integrity and the status of the high voltage
cables.
- Check the fuse on the pc board
- Make sure that he transformer is not burnt out.
- Excess flow of fuel caused by nozzle wear or installation of a nozzle
having different features than the original
- Obstructions in the ventilation air route
- Pc board broken. Replace
- Impurities in the fuel circuit: clean the tank, the filer and the
ducts. Change the fuel
- Switching on or off the appliance, you could see lightcoloured
fumes caused by the natural evaporation of the ceramic
material in the combustion chamber
- Air defect or excess fuel, caused by: - clogged or nonconforming nozzle:
replace
- Modified fuel pressure - flame turbo obstructed: clean
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