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25
20158125
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 lamp light which is situated in-
side the reset button of the control box (3, Fig. 1 on page 9).
When lock out lamp lights the burner will attempt to light only after
pushing the reset button.
After this if the burner functions correctly, the lock-out can be at-
tributed to a temporary fault.
If however the lock out continues the cause must be determined
and the solution found.
Tab. J
10
Faults / Solutions
Faults
Possible causes
Solution
The burner will not start when
the limit thermostat closes.
Lack of electrical supply.
Check presence of voltage in the L - N clamps of
the control box.
Check the conditions of the fuses.
Check that safety thermostat limit is not lock out.
The flame sensor sees false light.
Eliminate the light.
The connections in the control box are
wrongly inserted.
Check and connect completely all the plugs.
Burner runs normally in the
prepurge and ignition cycle and
locks out after 5 seconds ca.
The flame sensor is dirty.
Clean it.
The flame sensor is defective.
Change 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 posi-
tioned.
Adjust them according to the instructions of this
manual.
Air output is too high.
Set the air output.
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.
Содержание RDB 3.2 BT 58/70
Страница 2: ...Original instructions...