Troubleshooting
6-41
Part 1024496_06
2014 Nordson Corporation
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Is the pump LED illuminated?
Is the pump LED flashing?
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Are you using an optional input
(parameters 5 thru 10) to
enable/disable the pump?
Stop.
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Does pressing the pump key turn
the pump on?
Stop.
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Does replacing the operator’s
panel and then restarting the
melter correct the problem?
P4/P7 − P/N 1028326.
P10 − P/N 1028327.
Replace the CPU board.
P/N 1028325.
Go to
T.4.2
Continued on next page
Starting conditions:
No faults >
Ready LED is illuminated >
No hot melt output from all guns >
Pump has stopped
T.4.1
Quick check: Manually activating the heater key or the pump key will
override and eliminate remote inputs as the cause of a down condition.
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