Nordson VersaBlue 100H/100H, Manual

Page: 78 / 108

Troubleshooting
6-4
P/N 7146386A
E
2008 Nordson Corporation VBN w/o Control System
Too Little Material
Problem Possible Cause Corrective Action
Material supply hole to
pump or pump suction hole
partially clogged
− Detach pump and clean supply
hole or suction hole
Tank isolation valve not
completely open
− Open
Filter cartridge partly
clogged
− Clean or replace filter screen
Pressure control valve
defective
− Clean or replace
Processing temperature set
too low
− Correct temperature setting
Pump block of the gear
pump worn
− Replace pump
Material Pressure too High
Problem Possible Cause Corrective Action
Safety valve or pressure
control valve dirty and thus
blocked
− Disassemble and clean or replace
Safety valve or pressure
control valve defective
− Replace
Pressure control valve set
incorrectly
− Set to default
Pneumatic safety valve
(option) pressurized with
too high pressure
− Reduce pressure