Troubleshooting burner failures
10
Buderus Blue Flame Burner BE 1.3 - 2.3 - Specifications subject to change without notice.
39
10 Troubleshooting burner failures
10.1 Functional diagram
No Problem
Flame formation dur-
ing start-up process
No electrical power:
check fuses
Heating emergency
switch “OFF” position
System control
Aquasmart tripped?
Boiler control defec-
tive?
Burner control defec-
tive?
Oil pre-heater defec-
tive?
No power up signal,
control check: light
signal at base of
burner control
yes
no
yes
no
no
yes
Air entrapment in oil
lines
Burner firing control
defective
Solenoid valve defec-
tive
Oil pump defective
Motor defective, con-
denser defective
Oil pump clutch de-
fective
Oil filter or nozzle
plugged
Shut-off valve in pre-
heater defective
Air in oil supply line,
filter or oil line
plugged?
No oil in tank, suc-
tion line plugged,
quick connect valve
proper?
Flame sensor defec-
tive or dirty?
Flame instable or
sooting, check:
CO2/CO settings,
nozzle,
oil pressure,
mixing system/
diffuser plate
Electrodes are dis-
connected
Electrodes spark to
ground
No spark
Ignitor defective
Electrode cable isola-
tion defective
Distance between
electrodes incorrect
Stray light
Stray light
Burner operational
Burner error light on
burner control box is
red