Troubleshooting
6-4
Part 1108061-02
E 2015 Nordson Corporation
Common Problems (contd)
Problem Possible Cause Corrective Action
7. Cartridge filters
clogged
Pulse air pressure inadequate Increase the pulse air pressure or
volume. Decrease the pulse timer
delay (off time).
Powder contaminated Replace contaminated powder and
fix the source of contamination.
Pulse timer settings incorrect Adjust the timer settings. Refer to
the Operation section for typical
operating settings.
Pulse valve clogged or
malfunctioning
Open the pulse valve timer panel. If
you do not hear a pulse each time an
LED lights, the pulse valve connected
to that output may be clogged or
failed. Check the wiring to the valve
before replacing the valve.
Powder level in afterfilter waste
hopper too high
Empty the waste hopper.
8. System shuts down
or will not start
Flame detector system sees a
flame or spark, or is malfunctioning
Check the inside of the enclosure
and after filter; the detector head aim;
and the workpiece and conveyor
grounds. Follow the troubleshooting
procedures in the flame detector
system manual.
Final filters clogged Locate the source of powder leakage
and correct the problem. Refer to
problem 6.
Final filter pressure switch failed Replace the pressure switch.
Fuse(s) blown Check the fuses in the main control
panel. Replace the blown fuse(s). If
the fuses continue to blow, fix the
electrical problem.
Electrical failure Trace the circuits and correct the
problem.
Continued...
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