Nordson VersaBlue 100H/100H, Manual

Page: 77 / 108

Troubleshooting
6-3
P/N 7146386A
E 2008 Nordson Corporation
VBN w/o Control System
No Material (Motor does not Rotate)
Problem Possible Cause Corrective Action
System not yet ready Undertemperature during heatup
phase
Wait until the melter is heated
System currently not ready Undertemperature during operation
Material was refilled Wait until the melter is heated
Motor not switched on − Switch on motor
Speed (rpm) not set − Set speed (RPM)
Motor overheated Ambient temperature too high Decrease ambient temperature by
cooling or airing out
Fan cap dirty Clean
Pump blocked by foreign material Replace pump
Pump operates too sluggish Replace pump
Material too cold Set temperature accordingly
Motor defective − Replace
Motor not supplied with
voltage
− Technical inspection
Pump not turning Pump is cold, so material is cold Switch on pump heater
Replace heater cartridge
No Material (Motor Rotating)
Problem Possible Cause Corrective Action
Tank isolation valve closed − Open
Tank empty − Fill tank
Filter cartridge clogged − Clean or replace filter screen
Material supply hole to
pump or pump suction hole
clogged
Blocked by foreign objects/particles Detach pump and clean supply
hole or suction hole
Blocked by unmelted material Refer to Too Little Material
(Large tank and large quantity of
material)
Hose or gun is cold Hose/gun not connected
electrically
Insert plug into the corresponding
receptacle (Refer to wiring
diagram for assignment)
Hose/gun heater defective Replace hose
Replace heater cartridges in gun