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The main module
is in alarm mode,
due to alarm
thermo-probe
activation
(overheating of the
main module’s fuel
delivery pipe)
After the main unit is cooled down
to ambient temperature, the reason
for this emergency situation should
be clarified and necessary steps
should be taken in order to sustain
operating conditions for the burner.
The burner should be restarted;
The burner does
not run and a
“START” signal is
present (the
“START”
indicator is active
Check if the control board is in
alarm mode – see following table
with operating and alarm indication
Safety fuses are
broken due to
emergency short
circuit
This check-up operation should be
performed by authorized technician
only : check each fuse status and
replace if necessary with
appropriate one (
Attention
: safety
fuses F3 and F4 are fast reacting);
Low quality fuel
Fuel replacement is recommended,
most probably the moisture content
is higher than required for nominal
operation of the burner – see the
requirements in the fuel properties
table;
9.
The flame looks
“opaque” and
smoke is
observed at the
exit of the
chimney
Inappropriate
operating
parameters
adjustment
It is necessary to perform operating
parameters adjustment and achieve
efficient combustion process –
this
operation should be performed by
trained authorized personal only
;
Incorrect
photosensor
positioning
Change (i.e. slightly rotate or even
axially move) the position of the
photosensor
The external
surface of the
photosensor is
dirty
Clean the transparent section of the
photosensor by careful cleaning – do
not use solvents
10.
The ignition
process of the
fuel is
successful, but
the unit could
not reach stable
operating mode
The photosensor is
gone – its working
surface is damaged
and overheating
zones are observed
It is necessary to replace the
photosensor –
it should be
performed by authorized technician
only
