Troubleshooting
6-31
Part 1024496_06
2014 Nordson Corporation
Reset the melter and turn the heaters back on. Allow the unit to come
to temperature.
Starting conditions:
Fault LED is illuminated >
F3 fault exists
T.2.2
+
−
Is more than one component
overheating? (Check the actual
temperature of the faulting
component.)
Replace the main board.
P4/P7 − P/N 1028322.
P10 − P/N 1028323.
+
−
+
−
Is the tank key LED illuminated?
Are the tank/manifold TRIACs
operating properly?
Refer to DP.4.
Replace the tank/manifold RTD.
P/N 1028320.
Refer to DP.2.
+
−
Does replacing the hose or gun
RTD solve the problem?
+
−
Is DS1, DS2, DS3 or DS4 on the
hose/gun module illuminated
continuously?
Stop.
Replace the main board.
P4/P7 − P/N 1028322.
P10 − P/N 1028323.
Replace the hose/gun
P/N 1028328.
Continued on
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