37
20141167
GB
Faults - Possible causes - Solutions
Tab. T
8.2
Operating faults
Tab. U
The burner continues to repeat
the starting cycle without going
on lockout.
The gas pressure in the gas-mains lies very
close to the value to which the gas pressure
switch has been set.
The sudden drop in pressure when the valve is
opened provokes the opening of the pressure
switch itself, so the valve closes again
immediately and the motor stops.
The pressure then starts to increase again, the
pressure switch closes, the start-up cycle
begins again and so on.
Lower and set the pressure switch.
Faults
Possible Causes
Solution
Fault
Possible Causes
Solution
The burner locks out during
operation.
Earth probe.
Check the right position and if necessary set it
according to the instructions of this manual.
Clean or replace the ionisation probe.
The flame disappears 4 times.
Check the gas pressure in the network and/or
adjust the solenoid valve according to the
instructions of this manual.
Air pressure switch opening.
The air pressure is too low, (the head is bad
adjusted).
The air pressure switch is defective: change it.
Burner shut down.
Gas pressure switch opening.
Check the pressure in the network and/or adjust
the solenoid valve according to the instructions of
this manual.
