REHM TIGER 180 AC/DC ULTRA, Operating Instructions Manual, Page: 47 / 68

Fault
47
When switched on the system has different parameters
than those when it was switched off
Cause: Remedy:
Values are only saved Execute welding process
after a successful welding process.
No protective gas flows
Cause: Remedy:
Bottle is empty or the gas hose is kinked. Check
Pressure reduced is defective. Check
Gas value on the machine is defective. Service call
Blade terminal on the gas valve is loose. Check
Welding process “Electrode”
Gas valve remains closed
Rotation of the fan is not audible
Cause: Remedy:
Fan level is needs based
–
at lower Check whether the fan switched to a higher
temperatures the fan runs at a lower speed speed when under greater load.
or switch off.
Fan defective.
Service call
No high voltage pulse
Cause: Remedy:
HF ignition is set to off Switch on the HF ignition
No protective gas present Check
Grounding cable poorly connected Check
Electrode dirty Grind
Electrode not suitable Change electrode
Gas pre-flow time too long Reduce gas pre-flow time or wait until time
expires.
High-voltage flashover in the torch Change the torch
Connection between the torch and the Connect correctly
grounding cable reversed
Welding current does not reach the set value
or the arc does not burn.
Cause: Remedy:
Grounding cable poorly connected Check
Foot controller connected and not Check
actuated.
Hand remote control connected
Set the current on the remote control
No or incorrect protective gas Check
Arc sputters and jumps
Cause: Remedy:
Electrode and workpiece do not reach Use thinner electrodes
working temperature
Electrode is poorly sharpened
Grind electrode
Electrode not suitable Change electrode