Troubleshooting
6-21
Part 1073401_07
E 2021 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 tank?
?
Allow the tank to reach
setpoint temperature.
Secure the loose cordset
and then press the Reset
key.
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Repair the hose or
applicator cordset. Refer to
the hose or applicator
manual.
Is the power indicator for
the affected
hose/applicator
illuminated?
See Figure 6‐1.
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Replace the main board
(hose/applicator 1 or 2
affected) or replace the
power module
(hose/applicator 3 or 4).
Main board P/N 1122064
Power mod. P/N 1031202
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Is the voltage across the
fuse pair for the affected
hose/applicator correct?
See Figure 6‐1 and refer to
Tables 6‐3.
Replace the hose or
replace the applicator
RTD. Refer to the hose or
applicator manual.
Correct the factory voltage
or replace the
hose/applicator with a
properly rated
hose/applicator.
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Are any one of indicators
DS2, DS3, or DS7 on the
main board illuminated?
See Figure 6‐1.
Check/replace fuse pairs
F7/F8 or F9/F10 on the
main board.
P/N 1031203
See Figure 6‐1.
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Is the tank key LED
illuminated?
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Is the affected applicator or
hose cordset loose? (The
tank or the hose key LED is
illuminated.)
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Are the hose or applicator
cordset pins bent, loose, or
corroded?
Does the fault reoccur if
you move the faulting
hose/applicator pair to a
know good hose/applicator
connector?
Check the operation of the
power relay or thermostat.
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