Bentone bg 300 Manual page 19

CAUSE
The cable shoes have bad contact
The ignition cables are damaged
The ignition transformer is damaged, no voltage on the
secondary side
The ignition cable and the ionisation cable have been
transposed.
No flame establishment in spite of a trouble free start
The gas solenoid valve defective
The gas solenoid valve does not open in spite of its
obtaining voltage
No voltage to the solenoid valve
No electrical connection through the air pressure switch
The starting load is not correctly adjusted
Gas relay defective
Air pressure switch incorrectly adjusted or defective
No reponse as the cams of the servomotor are not
correctly adjusted or out of position.
The burner locks out after the safety time has elapsed
in spite of flame establishment
No ionisation current or the UV-cell in wrong position
The supervision part of the gas relay is defective
REMEDY
Improve the contact
Replace
Replace the transformer
Change
Replace
Replace coil or the whole valve if necessary.
Check the contact
Test the adjustment and the function of the air pressure
switch.
Reduce or increase the gas supply, reduce the quantity
of air.
Replace
Check the adjustment and readjust.
Adjust the ionisation electrode and the UV-cell, examine
cables and connections.
Replace the relay
2(4)