DÖRR EcoGun AS MAN EC, Operation Manual

Page: 25 / 52

Fault description Cause Remedy
Air escapes on the material
flow control (6) or the valve
(7). O-ring (33, 34) is defec-
tive. Replace O-ring.
Ä 9.3.3 “Replace material flow
control”
Sparking on the electrode Cascade (10) is defective.
Replace cascade.
Ä 9.3.9 “Replace cascade”
Electrode (21) is defective.
Replace electrode.
Ä
9.3.10 “Replace electrode”
“H.V.” LED lights up, even
though the gun trigger is
released. Air leakage on gun or air
hose
Rectify air leakage.
Flow switch in the con-
troller is defective.
Replace flow switch.
Ä “Applicable documents”, oper-
ating instructions of the controller
Flow switch is contami-
nated with oil, water or dirt. Replace flow switch.
Ä “Applicable documents”, oper-
ating instructions of the controller
Warning tone or alarm on
the controller Basic housing (24) conta-
minated with paint Clean basic housing.
Ä 7.2 “Cleaning”
Paint hose contaminated
with paint Clean paint hose.
Spray distance is too close
Increase spray distance or
decrease voltage value.
Water build-up in the air
ducts of the basic housing Drain water on the maintenance
unit. Blow out the air ducts.
Electrode (21) contami-
nated with paint
Clean or replace electrode (21).
Ä 9.3.10 “Replace electrode”
Worn out seal kit (25).
Replace seal kit.
Ä 9.3.1 “Replace needle, nozzle
and seal kit”
9.3 Troubleshooting
9.3.1 Replace needle, nozzle and seal kit
Personnel:
Operator
+ additional qualification high tension
technology
+ additional qualification explosion pro-
tection
Faults
11/2019 EcoGun AS MAN EC - MSG00022EN 25/52