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15
SERVICE
1. Service must be performed only by qualified repair personnel.
Service or maintenance
performed by unqualified 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
Insufficient 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
Insufficient gas
Check gas cylinder, regulator unit and gas
line fittings 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
