31
20035283
GB
Faults / Solutions
Here below you can find some causes and the possible solutions
for some problems that could cause a failure to start or incorrect
operation of the burner.
A fault usually makes the lock-out led signal which is situated in-
side the reset push-button of the control box (3, Fig. 1 to page 9).
When lock out lamp lights the burner will attempt to light only after
pushing the reset push-button. After this if the burner functions
correctly, the lock-out can be attributed to a temporary fault.
If however the lock out continues the cause must be determined
and the solution found.
10
Faults / Solutions
Faults
Possible cause
Fault
diagnostics
Solutions
The burner does not
start when there is heat
demand.
Lack of electrical supply.
OFF
Check presence of voltage in the L1 - N clamps of
the 5 pin plug.
Check the conditions of the fuses.
Check that safety thermostat is not lock out.
The flame detector sees false light.
Eliminate the exstraneous light.
The connections in the control box
are wrongly inserted.
OFF
Check and connect all the plugs and sockets prop-
erly.
The burner goes into
lockout mode before or
during the pre-purging.
The flame detector sees extrane-
ous light.
Eliminate the exstraneous light.
Burner runs normally in
the prepurge and igni-
tion cycle and locks out
after 5 seconds ca.
The flame detector is dirty.
RED
Steady ON
Clear it.
The flame detector is faulty.
Replace it.
Flame moves away or fails.
Check pressure and output of the fuel.
Check air output.
Change nozzle.
Check the coil of solenoid valve.
Burner starts with an
ignition delay.
The ignition electrodes are wrongly
positioned.
OFF
Adjust them according to the instructions of this
manual.
Air output is too high.
Set the air output according to the instructions of
this manual.
Nozzle dirty or worn.
Replace it.
WARNING
The manufacturer cannot accept responsibility for
any damage to persons, animals or property due
to error in installation or in the burner adjustment,
or due to improper or unreasonable use or non
observance of the technical instruction enclosed
with the burner, or due to the intervention of un-
qualified personnel.
