36
Servicing schedule
Cleaning the fan(s)
WARNING:
First of all cut the power supply to the boiler
Open the fan and clean the blades from the
incrustations.
Normally with the use of compressed air and a
brush it is possible to clean it properly
If the incrustations are more resistant, due to the formation
of condensate or tar tears, clean very carefully in order not to
bend or deform the blades. This could make the fan noisy during
operation and could reduce the fan’s performances.
Cleaning the primary and secondary air distributor.
Remove the central front wall (fig. 30) where the air adjustments
are placed and clean the inner space carefully from tarry resi-
dues, dust and wood flakes which have entered through the
primary air holes. Clean the secondary air passages carefully
with a
soft brush
.
