Chicago Electric 95424, 95629 manual Troubleshooting, Welder does not function when switched on

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TROUBLESHOOTING

Important!

Be CERTAIN to shut off the Welder, disconnect it from power, and discharge the torch to ground before adjusting, cleaning, or repairing the unit.

Welder does not function when switched on

Possible Causes and Solutions

1.Tripped thermal protection device:

Shut the welder’s switch to off and allow it to cool for at least 20 minutes.

Reduce duration or frequency of welding periods to help reduce wear on the welder. Refer to Duty Cycle section on page 20.

2.Faulty or improperly connected Trigger Switch (13E):

Have a technician check and secure/replace Trigger Switch (13E).

3.Internal fuse blown:

Have a qualified technician check/replace.

Weak arc strength

Possible Cause and Solution

Incorrect line voltage:

Check the line voltage and, if insufficient, have a licensed electrician remedy the situ- ation.

Welding arc not stable

Possible Causes and Solutions

1.Wire not feeding properly (MIG welding only): See first Troubleshooting section above.

2.Incorrect contact tip size (MIG welding only): Replace with the proper tip for the wire size used.

3.Incorrect wire feed speed (MIG welding only): Adjust wire feed speed to achieve a more stable arc.

4.Loose torch cable or ground cable:

Check to ensure that all connections are tight.

5.Damaged torch or loose connection within torch:

Have a qualified technician inspect and repair/replace as necessary.

If the steps above do not solve the problem or if the repairs involved are too

complex, contact a qualified technician.

SKU 95424, 95629 For technical questions, please call 1-800-444-3353.

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Contents For technical questions or replacement parts, please call Assembly And Operation InstructionsContents Please Note SpecificationsSave this Manual Electrical Safety General Safety RulesWork Area Tool USE and Care Personal SafetySpecific Safety Rules ServiceIndustrial applications must follow Osha guidelines Page Welding Produces toxic fumes and gasses Inhalation HazardCylinders can explode when damaged Grounding SymbologyExtension Cords Unpacking Assembly InstructionsAttaching the Wheels Stationary MobileSee , above right See , above left For use with a 7 Spool Installing a Wire SpoolFor use with a 11 Spool Routing the Wire Figure B Exercise Extreme Caution Risk of Fire AND/OR Electric Shock Attaching the Ground Cable with Clamp Changing Wire SettingsAttaching the Electrode Cable Arc Welder Only See Figure FSee illustration, top right initial Setup Setting Polarity for Welding TypeSet for Electrode Negative Dcen for gasless flux core wire See illustration, bottom rightFigure G Installing a Gas CylinderOperating Instructions Other settings fall between these two rangesBefore You Begin Welding Understanding Duty Cycle Duration of UseVoltage Selector Knob 5C Setting Up the WeldArc Stick Welding Set Up for Model 95424 Only MIG Welding Set UpSee Figures K & J See Figure KFigure J MIG Weld Settings ChartStarting a weld arc for stick arc welding only Arc Stick Welding Set Up , for Model 95424 OnlySee Figure L MIG welding only When the Weld is CompletedNozzle Inspection, Cleaning, and Replacement MIG Only INSPECTION, MAINTENANCE, and CleaningContactTip Inspection, Cleaning, and Replacement MIG Only Or more for .030Tips .067 or more for .045TipsReplacing the Welding Torch Liner MIG Only WarrantyParts List a Parts Lists and DiagramsAssembly Diagrams Power Block #32A Assembly DiagramsFigure N Front Panel #23AFigure O Wire Drive Assembly #16AFigure P Gun SB 25 #20AControllerBlock BCN-4U MIG/Arc Welder 95424 Electrical SchematicMIG Dual Welder 95629 Electrical Schematic Page Welder does not function when switched on TroubleshootingWeak arc strength Welding arc not stableTroubleshooting Wire feeds, but arc does not ignite MIG welding onlyNozzle Plugged Wire feed motor does not run MIG welding onlyRegulator or cylinder valve closed Gas line blocked