Troubleshooting
6-23
Part 1073401_07
E 2021 Nordson Corporation
+
−
Reset the melter and turn the heaters back on
Fault LED is illuminated >
F3 fault exists
T.2.2
Is there a DC drive near the
melter?
?
Stop.
+
−
Does installing an RC
snubber on the DC drive
and resetting the melter
clear the fault?
P/N 332182
Stop.
+
−
Does electrically grounding
the melter's chassis to the
parent machine/support
and then resetting the
melter clear the fault?
Correct the setpoint
temperature of the
component or increase the
overtemperature setpoint.
Install an RC snubber on
the melter.
P/N 332182
+
−
Is the tank/pump TRIAC
operating properly?
Replace the grid or
reservoir RTD.
P/N 1031234
Replace the main board.
P/N 1122064
Go to
T.2.4
+
−
Is more than one
component overheating?
(Check the actual
temperature of the faulting
component.)
+
−
Is the tank LED
illuminated?
+
−
Was the setpoint
temperature of the faulting
hose/applicator just
reduced?