Trouble or Complaint
Possible Cause
Action
3. Burner lights up but locks out
after 15 sec
No oil supply
Check oil in the tank.
Photo-electric cell not receiving light from flame
Check that photo-
electric cell is clean
and fully home in
housing.
Photo-electric cell connections loose
Check and tighten if
necessary.
Control Box photo-electric cell circuit faulty
Replace control box.
Flame instability
Check combustion
setting out and reset if
necessary.
4. Burner starts but will not light
up
This can be due either to absence of oil or ignition.
Oil pump air locked (repeat air locking may be due
to poor pipe joints or defective gland packings)
Pump should be self-
venting with two pipe
system only. If a one
pipe gravity feed is
employed it must be
purged through the
vent port.
Motor not driving pump shaft
Check that flexible
drive is functioning
correctly and not
slipping.
Blocked atomiser nozzle
Remove and replace
nozzle.
Oil pressure abnormally low
Check oil pressure on
gauge and set to the
correct pressure (
see
Technical Data
).
Solenoid valve faulty
Break union at outlet
to check presence of
oil. Check that seat is
clear. Check coil for
continuity. Inspect coil
feed wiring to control
box.
Pump rotation incorrect
Check.
Ignition failure:
Electrodes dirty
Inspect and clean if
necessary.
Electrodes miss-set
Inspect and reset gap
3 to 4mm between
tips. 2mm in front of
nozzle face.
Cracked electrode insulator
Check and replace if
cracked or crazed.
Electrode leads
Check for proper
connections.
5. Burner lights up, runs
continuously and emits
visible smoke or shows
excess smoke on combustion
check
Air shutter closed
Reset to correct
position.
Wrong nozzle
Check make, type and
spray angle.
Worn atomiser nozzle
Replace if necessary.
Oversize nozzle fitted in error
Check size and
replace with correct
Page 36 of 40
Camray 5 External Boilers
14/04/2005
file://D:\PL61000\PL61000.htm
