Century IM998 manual Troubleshooting

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E-3

TROUBLESHOOTING

E-3

 

 

 

 

Observe all Safety Guidelines detailed throughout this manual

 

PROBLEMS

(SYMPTOMS)

POSSIBLE

CAUSE

RECOMMENDED

COURSE OF ACTION

ELECTRICAL FAILURES

Machine fails to come on

1.

No Input Voltage.

(Power LED off)

2.

Faulty supply plug or cable.

 

3. Supply fuse blown or breaker

 

 

tripped.

 

 

 

Thermal overload

1.

Unit has been operated beyond its

(Thermal LED on)

 

capacity rating.

 

2.

Airflow through machine is restrict-

 

 

ed or fan has failed.

 

 

 

The fan works, but the output current

1.

Check the output current poten-

is unstable and can not be controlled

 

tiometer, and replace it if neces-

by the potentiometer while welding is

 

sary.

carried out.

2.

Verify output cables are attached

 

 

to the welder and tightly connect-

 

 

ed.

 

 

 

 

 

 

If all recommended possible areas of misadjustment have been checked and the problem persists, Contact your local Authorized Field Service Facility.

CAUTION

If for any reason you do not understand the test procedures or are unable to perform the tests/repairs safely, contact your Local Authorized Field Service Facility for technical troubleshooting assistance before you proceed.

INVERTER ARC™ 120

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Contents Inverter ARC Safety California Proposition 65 WarningsElectric Shock can kill Welding and Cutting Sparks can Cause fire or explosion Précautions DE Sûreté Sûreté Pour Soudage a L’ArcElectromagnetic Compatibility EMC Safety Thank You Customer Assistance PolicyTable of Contents Installation Technical Specification Inverter ARCOperating Temperature Range Storage Temperature RangeInput Connections Safety PrecautionsSelect Suitable Location Output Connections 120V InputTable A.1 Stick Welding MMASafety Instructions OperationGeneral Description Welding CapabilityControls and Operational Features Front Control PanelMaking a Weld ARC-WELDING CircuitElectric ARC Figure B.5 Routine Maintenance MaintenanceSafety Precautions Troubleshooting HOW to USE Troubleshooting GuideRecommended Symptoms Course of ActionTroubleshooting Diagrams Wiring Diagram for CodePrecaucion Warnung