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4. Is the programmer (or Boiler Operating Switch) set to call for heat?
5. Is the Boiler Thermostat set to the desired temperature?
6. Is the Lock-out Reset Button on the Control Box and Control Panel Neon illuminated? If so, press to reset
Burner.
7. Check the fuse which should have been fitted to the mains electricity supply to the programmer/boiler
operating switch. If the fuse has blown, replace it. If it blows again, call a Service Engineer.
IMPORTANT - Electrical Safety
IT IS ESSENTIAL THAT BEFORE ANY PANELS OR COMPONENTS ARE REMOVED FROM THE BOILER,
THAT THE MAINS ISOLATOR IS SWITCHED OFF.
10:2 Fault Finding Chart
Trouble or Complaint
1.
Suspect oil supply
2.
Burner will not start
3.
Burner lights up but
locks out after 15
seconds
BOULTER BUDERUS CAMRAY 5 PAGE 53
4.
Burner starts but will not
light up
file://D:\PL47000\PL47000.htm
Possible Cause
No oil in tank
Supply valves closed
Blockage in oil supply
(Gravity head feed)
Wrong grade of oil
Water contamination
Tank vent blocked
Filter blocked
Air locks in supply pipe Check for high points in main oil supply
Air lock in pump
Interruption or absence
of electrical supply at
burner (Check this at
Control Box mains
terminal with test lamp)
Control Box is locked
out, refer to
symptom 4
Photo-resistor receiving
false light
Faulty control box
No oil supply
Photo-electric cell not
receiving light from
flame
Photo-electric cell
connections loose
Control box photo-
electric cell circuit faulty
Flame instability
This can be due either to
absence of oil of ignition.
Oil pump air locked
Pump should be self-venting with two pipe system
(repeat air locking may
only. If a one pipe gravity feed is employed it must
be due to poor pipe
be purged through the vent port.
Action
Check and arrange for tank to be filled if
necessary
Open all supply valves
Shut off the burner isolating valve. Disconnect the
oil supply at the pump entry. Place receptacle
under the pipe. Slowly open the valve, not is the
flow is unrestricted, restricted or blocked.
Check for correct grade of fuel (see
data)
Open tank, drain valve and check
Check
Check for water or blockage
Bleed pump, check flexible oil line.
Check mains switch on. Check fuse in switched
spur or plug. Check that time switch or
programmer contacts are closed. Check that the
auxiliary stat is closed. Check boiler stat, cylinder
stat, room stat are calling for heat.
Press reset button on the burner box
Check that the photo-resistor is fully home in its
housing. Burner will not start with illuminated cell.
Replace.
Check oil in the tank.
Check that photo-electric cell is clean and fully
home in housing
Check and tighten if necessary.
Replace control box.
Check combustion setting out and reset if
necessary.
Page 64 of 67
technical
14/04/2005
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