Troubleshooting
6-41
Part 1107600_03
2014 Nordson Corporation
Fault LED is illuminated >
An F3 fault exists on a hose or gun >
The setpoint temperature was not
changed
T.2.4
Stop. Replace the main board.
P/N 1078624
+
−
Does replacing the main
board and resetting the
melter clear the fault
Replace the CPU board.
P/N 1031179
+
−
Does the fault clear if you
switch the faulting
hose/gun pair to a known
good hose/gun connector
and then reset the melter?
+
−
Does the fault clear if you
replace just the hose or just
the gun RTD and then
reset the melter?
+
−
Have LEDs DS8/DS9 or
DS12/DS13 on the main
board stopped flashing?
See Figure 6‐4.
Stop.
Replace the main board
(hose/gun 1 or 2 affected)
or replace the power
module (hose/gun 3 or 4).
Main board P/N 1078624
Power mod. P/N 1031202
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