TW Gema OptiSelect - Troubleshooting Guide; General Information

V 07/07
OptiSelect manual powder gun Troubleshooting guide • 33
Troubleshooting guide
General information
Fault Criteria Solution
H11 (error message on
control unit)
Gun not connected
Gun plug or gun cable
defective
Remote control on pow-
der gun defective
Connect the gun
Replace corresponding
part or send in for repair
Replace remote control
(gun cap)
Gun LED remains
dark, although the gun
is triggered
High voltage adjustment
is set too low
Gun plug or gun cable
defective
LED on gun defective
Increase high voltage
Replace defective part
or send in for repair
Replace gun back cover
Powder does not ad-
here to object, al-
though the gun is trig-
gered and sprays
powder
High voltage and current
deactivated
High voltage cascade
defective
Objects are not properly
grounded
Check the high voltage
and current setting
Send in the gun for re-
pair
Check the grounding