DÖRR EcoGun AS MAN EC, Operation Manual

Page: 24 / 52

Fault description Cause Remedy
No material Feed line pinched or
broken. Check the line.
Too much overspray or poor
transfer rate (efficiency) Distance to the work piece
is too large.
Reduce distance to 15 to 20cm.
Atomizer air pressure is
too high.
Decrease atomizer air pressure.
Work piece is not properly
grounded. Ground the work piece properly.
Low covering capacity Live voltage is too low. Increase output voltage at the
electrostatic controller.
Air escapes between valve
pin (17) and housing (19). Sealing ring (18) is worn
out. Replace sealing ring.
Paint drops from the work
piece. Layer of paint is too thick.
Reduce feed rate or move spray
gun more quickly.
Viscosity is too low.
Increase viscosity.
Paint leakage on the nozzle Nozzle (27) is soiled or
defective. Replace nozzle.
Ä 9.3.1 “Replace needle, nozzle
and seal kit”
Electrode needle (26) is
defective.
Replace electrode needle.
Ä 9.3.1 “Replace needle, nozzle
and seal kit”
Dried-on paint residues on
the needle (11)
Disassemble and clean needle.
Ä 9.3.1 “Replace needle, nozzle
and seal kit”
Paint leakage on the sealing
ring (23). Seal kit (25) is defective.
Replace seal kit.
Ä
9.3.1 “Replace needle, nozzle
and seal kit”
Poorly seating seal kit
(25).
Check if the seal kit is properly
assembled.
Ä 9.3.1 “Replace needle, nozzle
and seal kit”
Air escapes from the nozzle,
even though the trigger is
not pulled. Valve set (17) is soiled or
defective. Clean valve set.
Ä 9.3.5 “Replace valve set”
Valve set (17) is defective. Replace valve set.
Ä 9.3.5 “Replace valve set”
Faults
11/2019 EcoGun AS MAN EC - MSG00022EN 24/52