Nordson ProBlue P4 Customer Product Manual page 159

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