Faults / Solutions - Riello RDB1R GRANT MILTON 20 kW Installation, Use And Maintenance Instructions

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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 (5, Fig. 1 to page 6).
FAULTS
The burner will not start when
the limit thermostat closes.
Burner runs normally in the
prepurge and ignition cycle and
locks out after 5 seconds ca.
Burner starts with an ignition
delay.
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
WARNING
observance of the technical instruction enclosed
with the burner, or due to the intervention of un-
qualified personnel.
Faults / Solutions
POSSIBLE CAUSES
Lack of electrical supply.
The flame sensor sees false light.
Resistance or start thermostats are faulty.
The connections in the control box are
wrongly inserted.
The flame sensor is dirty.
The flame sensor is defective.
Flame moves away or fails.
The ignition electrodes are wrongly posi-
tioned.
Air output is too high.
Nozzle dirty or worn.
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.
SOLUTION
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.
Eliminate the light.
Replace them.
Check and connect completely all the plugs.
Clean it.
Change it.
Check pressure and output of the fuel.
Check air output.
Change nozzle.
Check the coil of solenoid valve.
Adjust them according to the instructions of this
manual.
Set the air output.
Replace it.
19 GB
Tab. G
20166849