NURIS MIG 550 RWS Operational Manual page 16

08/2022 Rev. 1.3
Refer to the troubleshooting table given below:
Most Common Power Supply Problems
Wire drive reels spins but wire does
not come through
Irregular wire feed
The arc does not start
The welding parameters such as wire feed speed, welding voltage and shielding gas
flow rate should be adjusted correctly to achieve a good quality weld.
Possible causes and solutions
* The compression spring pressing the
wire feed
spools are not in place or is loose.
* The torch lead is bent excessively or
the spiral guide inside the torch is
clogged.
* The contact part is blocked.
* Depending on the wire diameter used,
the wrong groove was used in the wire
feed spool.
* The wire is not placed correctly in the
spool
groove.
* Suitable welding wire is not used.
* The contact part is deformed.
* The wire feed spools are dirty or worn.
* Wrong groove is used in the wire feed
spool.
* The spiral guide inside the torch is
clogged.
* Suitable welding wire is not used
* Welding cable is not connected
properly.
* The contact part is deformed
* Earth clamp not connected correctly
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