Nordson AltaBlueA4TP - Page 157

Troubleshooting
6-35
Part 1107600_03
 2014 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 gun
cordset. Refer to the hose
or gun manual.
Is the power indicator for
the affected hose/gun
illuminated?
See Figure 6‐4.
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Replace the main board
(hose/gun 1 or 2 affected)
or replace the power
module (hose/gun 3 or 4).
Main board P/N 1078624
Power mod. P/N 1031202
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Is the voltage across the
fuse pair for the affected
hose/gun correct?
See Figure 6‐4.
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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Are any one of indicators
DS2, DS3, or DS7 on the
main board illuminated?
See Figure 6‐4.
Check/replace fuse pairs
F7/F8 or F9/F10 on the
main board.
P/N 1031203
See Figure 6‐4.
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Is the tank key LED
illuminated?
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Is the affected gun or hose
cordset loose? (The tank or
the hose key LED is
illuminated.)
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Are the hose or gun
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.