Rectifying faults
Checklist for rectifying faults
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099-004934-EW501
13.06.2013
7
Rectifying faults
All products are subject to rigorous production checks and final checks. If, despite this, something fails to
work at any time, please check the product using the following flowchart. If none of the fault rectification
procedures described leads to the correct functioning of the product, please inform your authorised
dealer.
7.1
Checklist for rectifying faults
NOTE
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
Coolant error/no coolant flowing
Insufficient coolant flow
Check coolant level and refill if necessary
Air in the coolant circuit
see chapter "Vent coolant circuit"
Wire feed problems
Contact tip blocked
Clean, spray with anti-spatter spray and replace if necessary
Setting the spool brake (see "Setting the spool brake" chapter)
Check settings and correct if necessary
Setting pressure units (see "Inching wire electrodes" chapter)
Check settings and correct if necessary
Worn wire rolls
Check and replace if necessary
Wire feed motor without supply voltage (automatic cutout triggered by overloading)
Reset triggered fuse (rear of the power source) by pressing the key button
Kinked hose packages
Extend and lay out the torch hose package
Wire guide core or spiral is dirty or worn
Clean core or spiral; replace kinked or worn cores
Functional errors
Machine control without displaying the signal lights after switching on
Phase failure > check mains connection (fuses)
No welding performance
Phase failure > check mains connection (fuses)
Various parameters cannot be set
Entry level is blocked, disable access lock (see chapter entitled "Lock welding parameters
against unauthorised access")
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
