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8. TROUBLESHOOTING. ELIMINATION OF DEFECTS.
8.1 If the main voltage is present and when control voltage 24VDC is applied: no electrical arc is generated at the
rod's tip and there is no voltage at the HV ignition transformer input, perform the following:
a) After opening the power pack box, check electrical connections on power pack board, terminals and
condition of components, especially the presence of main supply (check fuses) and control voltage on the
ignition relay terminals. Check the parameters at different points of the circuit. Replace any failed
component.
b) Assemble the igniter, connect the power supply and carry out the functional test following the rules in this
manual, repeat functional test after every component replacement.
8.2 If the main voltage is present and when control voltage 24VDC is applied: no electrical arc is generated at the
rod's tip when there is correct voltage at the HV ignition transformer input and output terminals (if it can be
measured), perform the following:
a) Disconnect the power source.
b) Check the condition of the cable and electric connections for possible mechanical damage.
c) Check the condition of the tip and it's screw joint for possible mechanical damage that could cause
internal electrical breakdown as in p. 7.2.
d) Follow the guidelines in points 7.3, 7.4 respectively.
e) After opening the door of the power pack box or unscrewing the Exd power pack enclosure cover, check
visually electrical connections on the board, check HV transformer and other components for burn
marks. In the case of excessive wear or burn marks replace the component.
f) Assemble the igniter, connect the power supply and grounding, make the functional test.
g) If no arc is generated after the above measures have been taken, replace the original rod tip, reconnect the
power source and make the functional test again, following the rules in this manual.
h) If again no arc is generated, replace the complete rod, and further the cable (if separate) and repeat the
functional test each time.
i) If still no arc is generated,
replace the complete power pack and repeat the functional test. If the spark will
appear check circuit components one by one in broken power pack to find the broken part.
j)
After every step assembly the igniter, reconnect the power supply/grounding and make the functional test
again.
8.3 The main components can be checked the following way:
a) Rod Tip P/N
HTR-TIP
or
-L
: check on reference igniter rod.
b) Transformer
P/N
TX-230-8000
or
TX-110-8000
: disconnect output, apply supply voltage. Measure output
voltage using high voltage probe – the measured value should be 8,000V.
c) Ignition relay P/N
HT-REL-24
: check if when voltage applied relay switches.
8.4 If the main voltage is present and when control voltage 24VDC is applied: the sparking is visible in other
places: on rod connections, grounding
points and cable glands - perform the steps as above especially looking
for bad connections, cracked cables, rod damage, bad grounding connections. Try to identify and correct/replace
faulty part. Repeat test after every component replacement following the rules in this manual.
8.5 If the main voltage is applied and there is no supply on
MBCE
module, follow the steps:
a) After opening the power pack box, check the presence of power supply on the power pack terminals.
b) Check the fuse and, if necessary, replace it.
c) Check visually electrical connections on power pack board, terminals, especially the wiring of the
MBCE
module, ignition relay. Check condition of components. In the case of excessive wear or burn marks
replace the component.
d) Measure the input parameters on the module base terminals and at different points of the circuit, also on
ignition relay. In case of correct voltage present on wiring base, replace the complete module, replace also
any other failed component.
e) Assemble the igniter, connect the power supply and carry out the functional test following the rules in this
manual, repeat functional test after every component replacement.