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SERVICE
1. Service must be performed only by qualied repair personnel. Service or maintenance
performed by unqualied personnel may result in a risk of injury.
2. When servicing a tool, use only identical replacement parts. Follow instructions in the
Maintenance Section of this manual. Use of unauthorized parts or failure to follow Maintenance
Instructions may create a risk of electric shock or injury.
TROUBLESHOOTING GUIDE
Always be sure that the tool is switched off and has been disconnected from the power source
before making any adjustments or performing any maintenance
procedures.
Problem Encountered Possible Cause Corrective Action
No output Power cord not plugged in Plug cord into outlet
Fuse blown or circuit breaker has tripped Replace fuse or reset circuit breaker
Power cord damaged Use authorized service center to repair or
replace power cord
Faulty switch Use authorized service center to repair or
replace switch
Overload protection system engaged Wait for unit to cool then try again
Bad wire-feed Insufcient pressure Tighten tension nut
Loose wing nut Tighten wing nut
Wire has become oxidized Replace wire spool
Not enough current Low input voltage Make sure input voltage matches input
voltage rating requirements
Loose connection Check ground cable solid connection
Damaged rectifying element(s) Use authorized service center to repair or
replace rectifying element(s)
Porous welds Insufcient gas Check gas cylinder, regulator unit and gas
line ttings for proper connection
Hole blocked Use compressed air to clear blockage
Bad gas or wire Check that gas is clean and dry
Use correct wire
Welder does not operate
when depressing switch
Control wire damaged Use authorized service center to repair or
replace control wire
Circuit plate damaged Use authorized service center to repair or
replace circuit plate