Nordson ProBlue P4 Customer Product Manual page 149

Reset the melter and turn the heaters back on. Allow the unit to come
to temperature.
Is more than one component
overheating? (Check the actual
−
temperature of the faulting
component.)
+
Continued on
next page
Replace the main board.
P4/P7 − P/N 1028322.
P10 − P/N 1028323.
Is the tank key LED illuminated?
−
+
Are the tank/manifold TRIACs
operating properly?
−
Refer to DP.4.
+
Replace the tank/manifold RTD.
P/N 1028320.
Refer to DP.2.
Is DS1, DS2, DS3 or DS4 on the
hose/gun module illuminated
−
continuously?
+
Does replacing the hose or gun
RTD solve the problem?
−
+
Stop.
T.2.2
Starting conditions:
Fault LED is illuminated >
F3 fault exists
Replace the hose/gun
P/N 1028328.
Replace the main board.
P4/P7 − P/N 1028322.
P10 − P/N 1028323.