Rectifying faults
Vent coolant circuit
099-005613-EW501
23.04.2019
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7.3 Vent coolant circuit
To vent the cooling system always use the blue coolant connection, which is located as deep as
possible inside the system (close to the coolant tank)!
Figure 7-1
7.4 Checklist for rectifying faults
The correct machine equipment for the material and process gas in use is a fundamental
requirement for perfect operation!
Legend
Symbol
Description
Fault/Cause
Remedy
Functional errors
Mains fuse triggers - unsuitable mains fuse
Set up recommended mains fuse
> see 8 chapter
.
Machine does not start up after switching on (device fan and possibly coolant pump have no function).
Connect the control cable of the wire feeder.
All machine control signal lights are illuminated after switching on
No machine control signal light is illuminated after switching on
No welding power
Phase failure > check mains connection (fuses)
Connection problems
Make control lead connections and check that they are fitted correctly.
Loose welding current connections
Tighten power connections on the torch and/or on the workpiece
Tighten contact tip correctly