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GM 5000EAC.
OPERATING MANUAL
EDITION 03/2012 PART NUMBER DOC 2319150
7 TROUBLE SHOOTING AND SOLUTION
Functional fault Cause Remedy
Insuffi cient material output • Nozzle too small. • Select larger nozzle
(see Accessories chapter 9).
• Material pressure too
low.
• Increase material pressure.
• Filter of gun or high
pressure fi lter at pump
clogged.
• Clean or replace fi lter.
• Nozzle is clogged. • Nozzle cleaning
(see paragraph 5.4.3 / 5.4.8).
Poor spray pattern • Wrongly adjusted
atomizing air.
• Readjust the atomizing air.
• Nozzle too large. • Select smaller nozzle
(see nozzle table).
• Material pressure too
low.
• Increase pressure at pump.
• Material viscosity too
high.
• Thin material in accordance
with the manufacturer‘s
instructions.
Valve rod leaks • Seals at the valve rod
are damaged
• Replace the seals
(see chapter 6).
• Loose package. • Tighten.
Poor wrap-around • Inadequate earthing. • Check earthing.
• Inadequate electrical
resistance of the paint.
• Check resistance of paint in
accordance with paragraph
4.1.1.
• Spraying pressure too
high.
• Readjust spraying pressure.
Back spraying • No earthing. • Check earthing.
• Distance between
spray gun and object
too large.
• Reduce distance between
spray gun and object
• Nozzle nut placed too
far forward.
• Screw back nozzle nut
(decrease air distributor
ring gap).
No wrap-around • High-voltage switch is
in the off position.
• Switch on high-voltage.
• No electrostatics. • Repair malfunction as laid
down in the control unit
operating instructions.