Troubleshooting
6-27
Part 1120277_01
E 2012 Nordson Corporation
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Reset the melter and turn the heaters back on
Fault LED is illuminated >
F2 fault exists
T.2.1
Go to
T.2.3
Was hot melt recently
added to the reservoir?
?
Allow the reservoir to reach
setpoint temperature.
Secure the loose cordset
and then press the Reset
key.
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Repairthehoseorgun
cordset. Refer to the hose
or gun manual.
Is the power indicator for
the affected hose/gun
illuminated (DS6=H/G 1,
power module=H/G 2 or
3)?
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Replace the main board
(hose/gun 1 affected) or
replace the power module
(hose/gun 2 or 3).
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Is the voltage across the
fuse pair for the affected
hose/gun correct?
Replace the hose or
replace the gun RTD. Refer
to the hose or gun manual.
Correct the factory voltage
or replace the hose/gun
with a properly rated
hose/gun.
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Areanyofthefollowing
indicators on the main board
illuminated?
DS2 (F1/F2), DS3 (F5/F6),
DS5 (F7/F8), DS6 (F9/F10),
DS7 (F11/F12)
Check/replacefusepairs
on the main board as
needed. Fuse pairs are
indicated parenthetically in
the previous box.
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Is the reservoir key LED
illuminated?
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Is the affected gun or hose
cordset loose? (The gun or
thehosekeyLEDis
illuminated.)
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Arethehoseorgun
cordset pins bent, loose, or
corroded?
Does the fault reoccur if
you move the faulting
hose/gun pair to a know
good hose/gun connector?
Check the operation of the
power relay or thermostat.
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