
25
6074
GB
Maintenance
7 led blinks
Flame detachment
34 - Poorly adjusted head . . . . . . . . . . . . . . . . . . . . . . . . . . . Adjust, see pag. 12, Fig. 13
35 - Poorly adjusted or dirty firing electrodes. . . . . . . . . . . . . Adjust, see pag. 12, Fig. 9 or clean
36 - Poorly adjusted fan air gate: too much air. . . . . . . . . . . . Adjust
37 - 1st nozzle is too big (pulsation). . . . . . . . . . . . . . . . . . . . Reduce 1st nozzle delivery
38 - 1st nozzle is too small (flame detachment). . . . . . . . . . . Increase 1st nozzle delivery
39 - 1st nozzle dirty, or deformed. . . . . . . . . . . . . . . . . . . . . . Replace
40 - Inappropriate pump pressure . . . . . . . . . . . . . . . . . . . . . Adjust to between 10 - 14 bar
41 - 1st stage nozzle unsuited to burner or boiler . . . . . . . . . See Nozzle Table, pag. 10 ; reduce 1st stage
42 - Defective 1st stage nozzle . . . . . . . . . . . . . . . . . . . . . . . Replace
The burner does not
pass to 2nd stage
43 - Control device TR does not close . . . . . . . . . . . . . . . . . . Adjust or replace
44 - Defective control box. . . . . . . . . . . . . . . . . . . . . . . . . . . . Replace
45 - 2nd stage sol. valve coil defective. . . . . . . . . . . . . . . . . . Replace
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 or vice versa.
Burner repeats starting
cycle
48 - Nozzle dirty . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Replace
49 - Photoresistor dirty . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Clean
50 - Excess air . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Reduce
Uneven fuel supply
51 - Check if cause is in pump or in the fuel supply system . Feed the burner from a tank located nearby
Rusty pump internal
parts
52 - Water in tank . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Suck water from tank bottom with separate pump
Noisy pump, unstable
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 light oil
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 light oil
61 - Leakage from sealing organ . . . . . . . . . . . . . . . . . . . . . . Replace
pump
Smoke in flame - dark
Bacharach - yellow
Bacharach
62 - Not enough air . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Adjust head and fan gate, see pag. 12 and pag. 18.
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 spiral 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 pag. 12 and pag. 18.
Dirty combustion head
69 - Nozzle or filter dirty . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Replace
70 - Unsuitable nozzle delivery or angle . . . . . . . . . . . . . . . . See recommended nozzles, pag. 10
71 - Loose nozzle. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Tighten
72 - Impurities on flame stability spiral . . . . . . . . . . . . . . . . . . Clean
73 - Erroneous head adjustment or not enough air . . . . . . . . Adjust, see pag. 18, open gate valve
74 - Blast tube length unsuited to boiler. . . . . . . . . . . . . . . . . Contact boiler manufacturer
10 led blinks
The burner goes to lock-
out
75 - Connection or internal fault . . . . . . . . . . . . . . . . . . . . . . .
76 - Presence of electromagnetic disturbance. . . . . . . . . . . . Use the radio disturbance protection kit
SIGNAL
FAULT
PROBABLE CAUSE
SUGGESTED REMEDY