Troubleshooting
6-29
Part 1120277_01
E 2012 Nordson Corporation
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Reset the melter and turn the heaters back on
Fault LED is illuminated >
F3 fault exists
T.2.2
IsthereaDCdrivenearthe
melter?
?
Stop.
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Does installing an RC
snubber on the DC drive
and resetting the melter
clear the fault?
Stop.
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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.
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Is the reservoir/melt
plate/manifold TRIAC
operating properly?
Replace the reservoir, melt
plate, or manifold RTD.
Replace the main board.
Go to
T.2.4
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Is more than one
component overheating?
(Check the actual
temperature of the faulting
component.)
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Is the reservoir LED
illuminated?
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Was the setpoint
temperature of the faulting
hose/gun reduced within
the previous hour or two?
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