40
SIGNAL
FAULT
PROBABLE CAUSE
SUGGESTED REMEDY
No blink
The burner does not
start
77 - No electrical power supply . . . . . . . . . . . . . . . . . . . . . . . . . Close all switches - Check fuses
78 - Linmit control device TL is open . . . . . . . . . . . . . . . . . . . . . Adjust or replace
79 - Safety control device TS is open. . . . . . . . . . . . . . . . . . . . . Adjust or replace
80 - Control box lock-out. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Reset control box (no sooner than 10 s after the lock-out)
81 - Pump is jammed . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Replace
82 - Erroneous electrical connections . . . . . . . . . . . . . . . . . . . . Check connections
83 - Defective control box. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Replace
84 - Defective electrical motor . . . . . . . . . . . . . . . . . . . . . . . . . . Replace
4 led
The burner starts
and then goes into lock-
out
85 - Photocell short-circuit . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Replace photocel
86 - Light is entering or flame is simulated. . . . . . . . . . . . . . . . . Eliminate light or replace control box
2 led
After pre-purge and the
safety time,
the burner goes to lock-
out
and the flame does not
appear
87 - No fuel in tank; water on tank bottom . . . . . . . . . . . . . . . . . Top up fuel level or suck up water
88 - Inappropriate head and air damper adjustments. . . . . . . . . Adjust
89 - Light oil solenoid valves fail to open (1st stage or safety) . . Check connections; replace coil
90 - 1st stage nozzle clogged, dirty, or deformed. . . . . . . . . . . . Replace
91 - Dirty or poorly adjusted firing electrodes. . . . . . . . . . . . . . . Adjust or clean
92 - Grounded electrode due to broken insulation . . . . . . . . . . . Replace
93 - High voltage cable defective or grounded . . . . . . . . . . . . . . Replace
94 - High voltage cable deformed by high temperature . . . . . . . Replace and protect
95 - Ignition transformer defective . . . . . . . . . . . . . . . . . . . . . . . Replace
96 - Erroneous valves or transformer electrical connections . . . Check
97 - Control box defective . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Replace
98 - Pump unprimed . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .Prime pump and see “Pump unprimes”
99 - Pump/motor coupling broken . . . . . . . . . . . . . . . . . . . . . . . Replace
100- Pump suction line connected to return line . . . . . . . . . . . . . Correct connection
101- Valves up-line from pump closed . . . . . . . . . . . . . . . . . . . . Open
102- Filters dirty: line - pump - nozzle . . . . . . . . . . . . . . . . . . . . . Clean
103- Defective photocell or control box . . . . . . . . . . . . . . . . . . . . Replace photocell or control box
104- Dirty photocell . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Clean
105- 1st stage operation of cylinder is faulty . . . . . . . . . . . . . . . . Change the cylinder
106- Motor protection tripped . . . . . . . . . . . . . . . . . . . . . . . . . . . Reset thermal cut-out
107- Defective motor command control device . . . . . . . . . . . . . . Replace
108- Missing phase thermal cut-out trips . . . . . . . . . . . . . . . . . . . . . . . Reset thermal cut-out when third phaseis re-connected
109- Incorrect motor rotation direction . . . . . . . . . . . . . . . . . . . . Change motor electrical connections
7 led
110- Poorly adjusted head . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Adjust
111 - Poorly adjusted or dirty firing electrodes . . . . . . . . . . . . . . . Adjust
112- Poorly adjusted fan air gate: too much air (1st stage). . . . . Adjust
113- 1st nozzle is too big (pulsation). . . . . . . . . . . . . . . . . . . . . . Reduce 1st nozzle delivery
114- 1st nozzle is too small (flame detachment) . . . . . . . . . . . . . Increase 1st nozzle delivery
115- 1st nozzle dirty, or deformed . . . . . . . . . . . . . . . . . . . . . . . . Replace
116- Inappropriate pump pressure . . . . . . . . . . . . . . . . . . . . . . . Adjust to between 10 and 14 bar
117- 1st stage nozzle unsuited to burner or boiler . . . . . . . . . . . See Nozzle Table, page 12; reduce 1st stage
118- Defective 1st stage nozzle . . . . . . . . . . . . . . . . . . . . . . . . . Replace
The burner does not
pass to 2nd stage
119- Control device TR does not close . . . . . . . . . . . . . . . . . . . . Adjust or replace
120- Defective control box. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Replace
121- 2nd stage sol. valve coil defective. . . . . . . . . . . . . . . . . . . . Replace
122- Piston jammed in valve unit . . . . . . . . . . . . . . . . . . . . . . . . Replace entire unit
Fuel passes to 2nd
stage
but air remains in 1st
123- Low pump pressure. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Increase
124- 2nd stage operation of cylinder is faulty . . . . . . . . . . . . . . . Change cylinder
Burner stops at transi-
tion
between 1st and 2nd
stage.
Burner repeats starting
cycle
125- Nozzle dirty . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Renew nozzle
126- Photocell dirty . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Clean
127- Excess air . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Reduce
Uneven fuel supply
128- Check if cause is in pump . . . . . . . . . . . . . . . . . . . . . . . . . . Feed burner from tank
or fuel supply system
located near burner
Internally rusted pump
129- Water in tank . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Suck water from tank bottom with separate pump
Noisy pump, unstable
pressure
130- Air has entered the suction line . . . . . . . . . . . . . . . . . . . . . Tighten connectors
- Depression value too high (higher than 35 cm Hg):
131- Tank/burner height difference too great. . . . . . . . . . . . . . . . Feed burner with loop circuit
132- Piping diameter too small . . . . . . . . . . . . . . . . . . . . . . . . . . Increase
133- Suction filters clogged . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Clean
134- Suction valves closed . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Open
135- Paraffin solidified due to low temperature . . . . . . . . . . . . . . Add additive to light oil
Pump unprimes after
prolonged pause
136- Return pipe not immersed in fuel . . . . . . . . . . . . . . . . . . . . Bring to same height as suction pipe
137- Air enters suction piping . . . . . . . . . . . . . . . . . . . . . . . . . . . Tighten connectors
Pump leaks light oil
138- Leakage from sealing organ . . . . . . . . . . . . . . . . . . . . . . . . Replace
pump
Smoke in flame
- dark Bacharach
- yellow Bacharach
139- Not enough air. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Adjust head and fan gate
140- Nozzle worn or dirty . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Replace
141- Nozzle filter clogged . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Clean or replace
142- Erroneous pump pressure. . . . . . . . . . . . . . . . . . . . . . . . . . Adjust to between 10 - 14 bar
143- Flame stability spirat dirty, loose, or deformed . . . . . . . . . . Clean, tighten in place, or replace
144- Boiler room air vents insufficient . . . . . . . . . . . . . . . . . . . . . Increase
145- Too much air . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Adjust head and fan gate
Dirty combustion head
146- Nozzle or filter dirty . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Replace
147- Unsuitable nozzle delivery or angle. . . . . . . . . . . . . . . . . . . See recommended nozzles
148- Loose nozzle . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Tighten
149- Impurities on flame stability spiral . . . . . . . . . . . . . . . . . . . . Clean
150- Erroneous head adjustment or not enough air . . . . . . . . . . Adjust; open gate valve
151- Blast tube length unsuited to boiler . . . . . . . . . . . . . . . . . . . Contact boiler manufacturer
10 led
152- Connection or internal fault
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