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8.5
Software diagnostics
Reports burner life by means of an optical link with the PC, indi-
cating hours of operation, number and type of lock-outs, serial
number of control box etc.
To view diagnostics, proceed as follows:
– Hold the button down for more than 3 seconds once the red
LED (burner lock-out) remains steadily lit.
A yellow light pulses to tell you the operation is done.
Button pressed for
Between 1 and 3 seconds
More than 3 seconds
More than 3 seconds starting from the visual
diagnostics condition
The sequence of pulses issued by the control box identifies the
possible types of malfunction, which are listed in the table on
pag. 25
SIGNAL
No blink
The burner does not start 1
2 led blinks
After pre-purge and the
safety time, the burner
goes to lock-out and the
flame does not appear
4 led blinks
The burner starts and
then goes into lock-out
Control box status
Control box reset without viewing visual diagnostics.
Visual diagnostics of lock-out condition: (LED pulses at 1-second intervals).
Software diagnostics by means of optical interface and PC (hours of operation,
malfunctions etc. can be viewed)
FAULT
- No electrical power supply . . . . . . . . . . . . . . . . . . . . . . . Close all switches - Check fuses
2
- Limit control device TL is open . . . . . . . . . . . . . . . . . . . . Adjust or replace
3
- Safety control device TS is open . . . . . . . . . . . . . . . . . . Adjust or replace
4
- Control box lock-out . . . . . . . . . . . . . . . . . . . . . . . . . . . . Reset control box (no sooner than 10 s after the lock-
5
- Pump is jammed . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Replace
6
- Erroneous electrical connections . . . . . . . . . . . . . . . . . . Check
7
- Defective control box . . . . . . . . . . . . . . . . . . . . . . . . . . . Replace
8
- Defective electrical motor . . . . . . . . . . . . . . . . . . . . . . . . Replace
9
- No fuel in tank; water on tank bottom . . . . . . . . . . . . . . . Top up fuel level or suck up water
10 - Inappropriate head and air gate valve adjustments . . . . Adjust, see pag. 13 and pag. 19
11 - Light oil solenoid valves fail to open (1st stage or safety) Check connections; replace coil
12 - 1st stage nozzle clogged, dirty, or deformed . . . . . . . . . Replace
13 - Dirty or poorly adjusted firing electrodes. . . . . . . . . . . . . Adjust or clean
14 - Grounded electrode due to broken insulation . . . . . . . . . Replace
15 - High voltage cable defective or grounded. . . . . . . . . . . . Replace
16 - High voltage cable deformed by high temperature . . . . . Replace and protect
17 - Ignition transformer defective . . . . . . . . . . . . . . . . . . . . . Replace
18 - Erroneous valves or transformer electrical connections . Check
19 - Defective control box . . . . . . . . . . . . . . . . . . . . . . . . . . . Replace
20 - Pump unprimed. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Prime pump and see "Pump unprimes"
21 - Pump/motor coupling broken . . . . . . . . . . . . . . . . . . . . . Replace
22 - Pump suction line connected to return line . . . . . . . . . . . Correct connection
23 - Valves up-line from pump closed . . . . . . . . . . . . . . . . . . Open
24 - Filters dirty: line - pump - nozzle . . . . . . . . . . . . . . . . . . . Clean
25 - Defective photoresistor or control box . . . . . . . . . . . . . . Replace photoresistor or control box
26 - Photoresistor dirty . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Clean
27 - 1st stage operation of cylinder is faulty. . . . . . . . . . . . . . Change cylinder
28 - Motor protection tripped . . . . . . . . . . . . . . . . . . . . . . . . . Reset thermal cut-out
29 - Defective motor command control device. . . . . . . . . . . . Replace
30 - 2-phase power supply thermal relay trips . . . . . . . . . . . . Reset thermal cut-out when third phase is re-con-
31 - Incorrect motor rotation direction . . . . . . . . . . . . . . . . . . Change motor electrical connections
32 - Photoresistor short-circuit . . . . . . . . . . . . . . . . . . . . . . . . Replace photoresistor
33 - Light is entering or flame is simulated. . . . . . . . . . . . . . . Eliminate light or replace control box
Maintenance
Release the button for 1 second and then press again for over
3 seconds until the yellow light pulses again.
Once the button is released, the red LED will flash intermittent-
ly with a higher frequency: only now can the optical link be ac-
tivated.
Once the operations are done, the control box's initial state must
be restored using the resetting procedure described above.
PROBABLE CAUSE
25
GB
SUGGESTED REMEDY
out)
nected
6088
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