27
20127402
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 lockout led signal which is situated in-
side the reset button of the control box.
When lockout lamp comes on the burner will attempt to light only
after pushing the reset button. After this if the burner functions
correctly, the lockout can be attributed to a temporary fault that is
not dangerous.
If however the lockout continues the cause must be determined
and the solution found.
Tab. J
9
Faults / Solutions
Faults
Possible cause
Fault diag-
nostics
Solutions
The burner does not
start when there is heat
request.
Lack of electrical supply.
OFF
Check presence of voltage in the L - N the pin plug.
Check the conditions of the fuses.
Check that safety thermostat is not in lockout.
The flame sensor sees an extrane-
ous light.
Eliminate the extraneous light.
The connections in the control box
are wrongly inserted.
OFF
Check and connect all the plugs and sockets prop-
erly.
The heater is broken.
0.5 sec ON
2.5 sec OFF
Replace them.
The burner goes into
lockout mode before or
during the pre-purging or
pre-heating.
The flame sensor sees extraneous
light.
Eliminate the extraneous light.
Burner runs normally in
the pre-purging and igni-
tion cycle and locks out
after about 5 seconds.
The flame sensor is dirty.
RED
Steady ON
Clear it.
The flame sensor 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 ig-
nition 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.
Summary of Contents for 8099157
Page 2: ...Istruzioni originali Translation of the original instructions...
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Page 60: ...Con riserva di modifiche Subject to modifications...
