Nordson ProBlue P4 Customer Product Manual page 151

Is indicator DS2 in the main board
illuminated?
−
+
Is the power harness into J6
connected securely?
−
+
Is the voltage across the
downstream side of fuses F1/F2
−
or F3/F4 on the main board
between 170 and 265 VAC?
See Figure 6-1.
+
Continued
on next
page
Connect securely.
Check/correct the house
voltage.
Are indicators DS5 or DS6
illuminated on any hose/gun
−
module?
See Figure 6-1.
+
Does replacing fuses F1 and F2
on the main board and then
−
resetting the melter clear the
fault?
P/N 1028329.
+
Stop.
T.2.3
Starting conditions:
Fault LED is illuminated >
F2 fault exists >
Tank key LED is illuminated >
Hot melt has not been added
Check the operation of the
power relay or thermostat.
Connect securely. Refer to
DP.3
Replace the main board.
P4/P7 − P/N 1028322.
P10 − P/N 1028323.