Maintenance
Fuel passes to 2nd
stage but air
remains in 1st
46 - Low pump pressure . . . . . . . . . . . . . . . . . . Increase
47 - 2nd stage operation of cylinder is faulty . . . Change cylinder
Burner stops at
transition between
1st and 2nd stage.
Burner repeats
starting cycle.
48 - Nozzle dirty. . . . . . . . . . . . . . . . . . . . . . . . . Renew nozzle
49 - Photocell dirty. . . . . . . . . . . . . . . . . . . . . . . Clean
50 - Excess air. . . . . . . . . . . . . . . . . . . . . . . . . . Reduce
Uneven fuel supply 51 - Check if cause is in pump or fuel supply . .
system
Feed burner from tank located near
burner
Internally rusted
pump
52 - Water in tank . . . . . . . . . . . . . . . . . . . . . . . Suck water from tank bottom with sepa-
rate pump
Noisy pump, unsta-
ble pressure
53 - Air has entered the suction line . . . . . . . . . Tighten connectors
- Depression value too high (higher than 35 cm
Hg):
54 - Tank/burner height difference too great . . . Feed burner with loop circuit
55 - Piping diameter too small . . . . . . . . . . . . . . Increase
56 - Suction filters clogged . . . . . . . . . . . . . . . . Clean
57 - Suction valves closed. . . . . . . . . . . . . . . . . Open
58 - Paraffin solidified due to low temperature . Add additive to fuel
Pump unprimes
after prolonged
pause
59 - Return pipe not immersed in fuel . . . . . . . . Bring to same height as suction pipe
60 - Air enters suction piping . . . . . . . . . . . . . . . Tighten connectors
Pump leaks fuel 61 - Leakage from sealing organ. . . . . . . . . . . . Replace pump
Smoke in flame
- dark Bacharach
- yellow Bacharach
62 - Not enough air . . . . . . . . . . . . . . . . . . . . . . Adjust head and fan gate, see page 17
and page 23
63 - Nozzle worn or dirty . . . . . . . . . . . . . . . . . . Replace
64 - Nozzle filter clogged . . . . . . . . . . . . . . . . . . Clean or replace
65 - Erroneous pump pressure . . . . . . . . . . . . . Adjust to between 10 - 14 bar
66 - Flame stability spirat dirty, loose, or
deformed
Clean, tighten in place, or replace
67 - Boiler room air vents insufficient . . . . . . . . Increase
68 - Too much air . . . . . . . . . . . . . . . . . . . . . . . Adjust head and fan gate, see page 17
and page 23
Dirty combustion
head
69 - Nozzle or filter dirty. . . . . . . . . . . . . . . . . . . Replace
70 - Unsuitable nozzle delivery or angle . . . . . . See recommended nozzles, page 16
71 - Loose nozzle . . . . . . . . . . . . . . . . . . . . . . . Tighten
72 - Impurities on flame stability spiral . . . . . . . Clean
73 - Erroneous head adjustment or not enough
air
Adjust, see page 17 and page 23; open
gate valve
74 - Blast tube length unsuited to boiler . . . . . . Contact boiler manufacturer
10 pulses
The burner goes to
lockout
75 - Connection or internal fault . . . . . . . . . . . .
76 - Presence of electromagnetic disturbance . Use the radio disturbance protection kit
SIGNAL FAULT POSSIBLE CAUSE SOLUTION
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