
T
ROUBLE
-
SHOOTING
Table 5.1
Trouble-shooting
No UV signal.
Not enough main fuel:
• Main fuel regulator set too low.
• Fuel pressure into main regulator too low.
• Main fuel cock closed.
• Main safety shut-off valve does not open.
• Main fuel control valve set too low.
• Air in the gas line.
• No fuel oil to nozzle.
Too much gas.
No UV signal.
Low main fuel pressure switch is set too
high.
• Not enough fuel.
• Too much air.
• Not enough fuel pressure into main fuel
regulator.
• Fuel pressure drops as input is increased.
• Main fuel control valve is not functioning.
• Incorrectly positioned gas/oil gun.
• Unstable air flow.
• Unstable fuel flow.
• Pilot gun inserted too far.
Check wiring and control logic.
Check outgoing fuel pressure of main
regulator; increase as necessary.
Check incoming fuel pressure against
initial settings; increase as necessary.
Open all fuel cocks.
Have qualified electrician check
power supply and safety circuitry.
Adjust fuel flows to give pressures
indicated in Appendix.
Repeat start-up several times to
purge air out of gas lines.
Repeat start-up several times to fill
oil lines and nozzle. Reduce piping
length if necessary.
Trim control valve to give pressure
indicated in Appendix.
Check wiring and control logic.
Check and reset low pressure switch
setting.
Check start-up settings and adjust to
increase fuel flow.
Check combustion air pressure drops/
flow across the burner and adjust.
Adjust pressure regulator so pressure
is provided at burner as specified in
this manual.
Check for clogging of valves and
regulators in fuel line.
Check actuator and linkage.
Ensure gas/oil gun is centered within
the throat cone.
Check blower/air system for
pressure pulsations.
Check pressure regulator and
control valve for pulsations.
Pull back pilot gun.
Start-up sequence runs, pilot lights but
main burner does not light.
Pilot ignites but flame safeguard shuts
down burner.
Burner kicks out shortly after start-up.
The low fire flame is weak and
unstable.
Burner does not go to high fire.
Main flame is uneven and not
centered in the refractory block.
Main flame pulsates or is unstable.
PROBLEM
POSSIBLE CAUSE
SOLUTION
5-10
Adjust position of UV sensor with
swivel mount.
Eclipse Vortometric Burner v2.00, Installation Guide 248, 4/10/07