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6.7 CLEANING THE INTERIOR OF THE HEATER
For thorough cleaning, the heater can be cleaned and washed inside
and outside with water. It is however necessary to ensure that:
• the electrical cable is disconnected and unplugged from the socket
• completely close all access panels
• do not use water jets at a pressure exceeding 70 bar at a distance
less than 30 cm
• completely dry all parts before reconnecting the electrical cable.
6.8 CLEANING THE COMBUSTION CHAMBER
To maintain the burner's high efficiency and prolong its life, the
procedure described in this paragraph must be done at least once at
the end of the work season or more frequently if there is an excessive
build-up of soot. Excessive soot may be caused by poor chimney
draught, poor fuel quality, poor regulation of the burner, or more or
less frequent alternation of burner starts and stops.
Pay attention during operation: pulsations at start may be due to
excessive amounts of soot.
To access the heat exchanger (1), take off the rear panel (3), remove
the smoke box inspection panel (2), and then remove baffle plates (7).
To access the combustion chamber (4) remove the burner (5).
Clean with compressed air or, if necessary, with a metal brush to
remove any deposited soot and combustion residues.
Warning
After any technical work, always check that the heater
FAULT
• The heater does not start:
lamp
is off
• The heater does not start:
lamp
is on
• The heater does not work:
the lamp
on the electrical panel is on
The heater does not work:
the lamp
on the electrical panel is on
• The heater does not work::
the lamp
on the burner is steady on
• Fan noise or vibrations
• Insufficient heating
L-L 321.00-BM
EN
CAUSE
• No power supply
• Switch (a) in wrong position
• Incorrect functioning of the room thermostat
• Burner thermostat has tripped due to
overheating
• Manual reset safety thermostat has tripped due
to excessive overheating of combustion
chamber
• Motor thermal protection has tripped due to
excessive electrical power absorption
• Burner's safety equipment has tripped
• Foreign bodies on fan blades
• Insufficienct air circulation
• Insufficient burner capacity
works correctly.
7. TROUBLESHOOTING
In the event of serious anomalies, various safety devices are able to
block the machine's operation and signal the same:
the blocking signal following intervention by the safety
thermostat: the reset button is located on the thermostat
F+L1+L2 box.
the blocking signal following intervention by the motor
thermal protection: the reset button is located inside the
electrical panel.
• on the burner
the blocking signal following intervention by the burner's
flame control box.
Warning
NEVER do more than two restarts in a row: unburned fuel
can accumulate in the combustion chamber and suddenly
flare up at the next restart.
If the heater is still not working properly, please contact your nearest
dealer or authorized Service Centre.
• Check functioning and position of switch
• Check the mains
• Check power connections
• Check fuse
• Select correct position
• Check that thermostat connection plug is inserted
• Check thermostat electrical connection
• Check thermostat setting and correct it
• Check functioning of thermostat
• Check correct position of air distribution channels
and opening of any flaps, openings, etc.
• Remove any foreign bodies trapped in the air ducts or
ventilation grilles
• Check that the fan motor starts correctly and is not
obstructed
• Check that the fan motor is not burned out or that the
motor condenser is not broke
• Check burner calibration
• Check the path and correct discharge of fumes
• Remove any foreign bodies trapped in the air ducts or
suction grilles
• Make sure the length of the air supply hoses are not
too long
• Refer to the burner manual for diagnosis and causes
• Remove foreign bodies
• Eliminate all possible obstacles to proper air flow
• Contact Customer Service
REMEDY
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