Nordson ProBlue P4 Customer Product Manual page 163

Is the set-point temperature
correct for the hose/gun pair that
−
has no hot melt output?
+
Is the displayed temperature for
the stopped hose/gun changing
−
erratically?
+
Check/replace the hose or the
gun RTD.
Refer to the hose or gun
manual.
Adjust the set-point
temperature.
Are the gun solenoid, gun driver,
or air supply to the gun
−
functioning properly?
+
WARNING: Relieve system
pressure before continuing.
−
Is the gun nozzle or an inline
Saturn filter blocked?
+
Clean the nozzle or replace the
filter.
T.5
Starting conditions:
No faults >
Ready LED is illuminated >
Hot melt output from some guns
Replace/repair the
solenoid/gun driver or adjust
the air supply.
WARNING: Relieve system
pressure before continuing.
−
Does hot melt flow from the gun
body if you remove the gun
module?
+
Replace the gun module.
Refer to the gun manual.
Replace the hose.
WARNING: Relieve system
pressure before continuing.
−
Does hot melt flow from the hose
if you remove the gun?
+
Replace the gun body, heater,
or RTD.
Refer to the gun manual.