3330
16
GB
6.2 TROUBLE DURING OPERATION
Burner runs normal-
ly in the prepurge
and ignition cycle
and locks out after 5
seconds ca.
The photoresistance is dirty.
Clear it.
The photoresistance is defective.
Change it.
The fibre optic is dirty.
Clear it.
The fibre optic is not in line with the
hole of the diffuser disc-holder as-
sembly.
Check the line-up.
Flame moves away or fails.
Check pressure and output of the fuel.
Check air output.
Change nozzle.
Check the coil of solenoid valve.
Yellow flame.
Nozzle dirty or worn.
Replace it.
Defect in the air output.
Adjust the air output.
Pump pressure is not correctly set.
Verify the pressure and the output of the
fuel and adjust them according to the in-
structions of this manual.
Air suction inlet is clogged.
Clear it.
Obstruction in the exhaust circuit.
Clear it.
Burner starts with an
ignition delay.
The ignition electrodes are wrongly
positioned.
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.
FAULT
POSSIBLE CAUSES
SOLUTION
B u r n e r l o c k s o u t
during operation.
Flame disappears 4 times.
Clean or replace photoresistance.
Replace dirty or deteriorated nozzle.
Does not shut down.
Check efficiency of photoresistance.
Check efficiency of pressure regulator's
piston.
Check efficiency of pump's on-off valve.
FAULT
POSSIBLE CAUSES
SOLUTION
