TW Gema OptiSelect - Page 36

V 07/07
34 • Troubleshooting guide OptiSelect manual powder gun
Fault Causes Fault elimination
The gun does not
spray powder, al-
though the control unit
is switched on and the
gun is triggered
Compressed air not pre-
sent
Too little conveying air
Injector or nozzle on the
injector, powder hose or
powder gun clogged
Insert sleeve in the in-
jector worn or not in-
serted
Nozzle in the injector
clogged
Fluidizing not running
No conveying air:
Motor throttle defective
Solenoid valve defective
Front plate defective
Connect the equipment
to the compressed air
Increase the powder
output and/or total air
volume on the control
unit
Clean corresponding
part
Replace or insert
Replace
(see above)
Replace the motor throt-
tle
Replace the solenoid
valve
Send in for repair