EWM Drive XQ AC Operating Instructions Manual page 44

Rectifying faults
Checklist for rectifying faults
Collective interference signal light illuminates
 Excess temperature, welding machine
Allow the machine to cool down whilst still switched on
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 Welding current monitoring device triggered (stray welding currents flowing across the protective e-
arth). The error must be reset by switching the machine off and on again.
Welding wire is touching electrically conductive casing parts (check wire guide, has the welding

wire sprung off the wire spool?).
Check for a correct mounting of the welding lead. Fit the feeder clamp of the welding lead as
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close as possible to the arc.
Excess temperature signal light illuminates
 Excess temperature, welding machine
Allow the machine to cool down whilst still switched on

Coolant error/no coolant flowing
 Insufficient coolant flow
Check coolant level and refill if necessary

  A ir in the coolant circuit
Vent coolant circuit > see 7.3 chapter

Wire feed problems
 Wire feed roll holder is worn (wire feed rolls must be firmly seated on their holders and must not have
any play)
Replace wire feed roll holder (092-002960-E0000) > see 10.1.4 chapter)
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Clean, spray with anti-spatter spray and replace if necessary
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 Contact tip blocked
Clean, spray with anti-spatter spray and replace if necessary
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 Setting the spool brake > see 5.3.3.4 chapter
Check settings and correct if necessary
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 Setting pressure units > see 5.3.3.3 chapter
Check settings and correct if necessary
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 Worn wire rolls
Check and replace if necessary
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 Wire feed motor without supply voltage (automatic cutout triggered by overloading)
Reset triggered fuse (rear of the power source) by pressing the key button
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 Kinked hose packages
Extend and lay out the torch hose package
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 Wire guide core or spiral is dirty or worn
Clean core or spiral; replace kinked or worn cores
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099-005613-EW501
23.04.2019