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SIGNAL
FAULT
Pump unprimes
after prolonged
pause
Pump leaks fuel
Smoke in flame
- dark Bacharach
- yellow Bacharach
Dirty combustion
head
10 pulses
6426
Maintenance
POSSIBLE CAUSE
44 - Return pipe not immersed in fuel . . . . . . . . Bring to same height as suction pipe
45 - Air enters suction piping. . . . . . . . . . . . . . . Tighten connectors
46 - Leakage from sealing organ. . . . . . . . . . . . Replace pump
47 - Not enough air . . . . . . . . . . . . . . . . . . . . . . Adjust head and fan air damper
48 - Nozzle worn or dirty . . . . . . . . . . . . . . . . . . Replace
49 - Nozzle filter clogged. . . . . . . . . . . . . . . . . . Clean or replace
50 - Erroneous pump pressure . . . . . . . . . . . . . Adjust to between 10 - 14 bar
51 - Flame stability disc dirty, loose, or deformed Clean, tighten in place, or replace
52 - Boiler room air vents insufficient . . . . . . . . Increase
53 - Too much air. . . . . . . . . . . . . . . . . . . . . . . . Adjust head and fan air damper
54 - Nozzle or filter dirty . . . . . . . . . . . . . . . . . . Replace
55 - Unsuitable nozzle delivery or angle . . . . . . See recommended nozzles, page 16
56 - Loose nozzle . . . . . . . . . . . . . . . . . . . . . . . Tighten
57 - Impurities on flame stability spiral . . . . . . . Clean
58 - Erroneous head adjustment or not enough
air
59 - Blast tube length unsuited to boiler . . . . . . Contact boiler manufacturer
60 - Connection or internal fault . . . . . . . . . . . .
61 - Presence of electromagnetic disturbance . Use the radio disturbance protection kit
30
GB
SOLUTION
Adjust, see page 17 and page 23; open
gate valve
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