8
Operating problems, causes and remedies
8/1
All machines are subjected to strict manufacturing and final inspection procedures. If, despite this,
something fails to work at any time, please check machine using the following process chart. If
none of the fault elimination procedures described leads to the correct functioning of the machine,
please inform your authorised dealer.
8.1
Customer checklist
8.1.1
Customer checklist (
inverter
TIG 150 DC
)
Switch on the machine
(at the mains switch (Kap. 2, A)
Yes
Machine functioning
No
•
Mains supply broken
•
Mains plug not inserted
•
Mains fuse faulty
•
Mains power switch faulty
Yes
Press torch trigger
Yes
Green LED lights (Kap. 3, H1)
power unit / "on"
No
•
Torch connection incorrect (check torch
lead according to circuit diagram)
•
Torch control cable not inserted
•
Torch or torch trigger faulty
Yes
Shielding gas is expelled
No
•
No shielding gas connected
•
Pressure reducer turned off
Yes
Open circuit voltage
No
•
Test switch (Kap. 3, J1) in „test“ position
(Option)
•
yellow LED (Kap. 3, I1) excess temperature
lights (allow machine to cool down)
Yes
HF is applied
No
•
HF toggle switch on Lift-Arc ignition
Yes
Welding current
No
•
Welding torch faulty
•
Workpiece lead connected
•
Workpiece lead in wrong socket
Yes
Good welding properties
No
•
Leaky shielding gas supply
•
Welding torch damaged
•
Tungsten electrode contaminated
•
insufficient or excessive shielding gas
Yes
Remote control functions
No
•
Remote control plug not inserted in the
machine
•
Remote control or cable defective
