Troubleshooting
6-39
Part 1024496_06
2014 Nordson Corporation
Starting conditions:
No faults >
Ready LED is illuminated >
No hot melt output from all guns
T.4
+
−
Has the pump stopped?
+
−
+
−
Is the pump cycling fast?
Is there sufficient air pressure to
the pump (greater than 0.7 bar/10
psi)?
Locate and repair the leak.
+
−
Is hot melt leaking from the
system somewhere between the
manifold and the guns?
Adjust the air pressure.
The pump piston ball valve is
stuck open.
Refer to Appendix D.
Continued on
next page
Go to 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.
Quick check: Save settings and reset the melter to factory default settings. If
the melter functions normally, isolate the input or output problem.
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