Miller Electric 456 CV, 456 CC manual Troubleshooting, Trouble Remedy

Page 31

5-5. Troubleshooting

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Trouble

 

Remedy

 

 

 

 

 

No weld output; unit completely inop-

Place line disconnect switch in On position (see Section 3-10).

erative.

 

 

 

 

 

 

 

 

 

 

Check and replace line fuse(s), if necessary, or reset circuit breaker (see Section 3-10).

 

 

 

 

 

 

 

 

Check for proper input power connections (see Section 3-10).

 

 

 

 

 

No weld output; meter display On.

Check, repair, or replace remote control.

 

 

 

 

 

 

 

 

Unit overheated. Allow unit to cool with fan On (see Section 3-2).

 

 

 

 

 

Erratic or improper weld output.

Use proper size and type of weld cable (see Section 3-6).

 

 

 

 

 

 

 

 

Clean and tighten all weld connections.

 

 

 

 

 

No 115 volts ac output at duplex recep-

Reset circuit breaker CB1 (see Section 3-8).

tacle, Remote 14 receptacle.

 

 

 

 

 

 

 

No 24 volts ac output at Remote 14 re-

Reset circuit breaker CB2 (see Section 3-8).

ceptacle.

 

 

 

 

 

 

 

OM-188 422 Page 27

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Contents Processes OM-188 422FDescription From Miller to You Table of Contents Standards DirectivesElectric Shock can kill Symbol UsageMarks a special safety message Arc Welding HazardsBuildup of GAS can injure or kill ARC Rays can burn eyes and skinWelding can cause fire or explosion Flying Metal can injure eyesPrincipal Safety Standards About Pacemakers EMF InformationLES Fumé ES ET LES GAZ peuvent ê tre dangereux Signification des symbolesConsignes DE Securite Lire Avant Utilisation UN Choc É Lectrique peut tuerDES Particules Volantes peuvent blesser les yeux LE Soudage peut provoquer un incendie ou une explosionLE Bruit peut affecter l’ouïe DES Organes Mobiles peuvent provoquer des blessures Risque D’INCENDIE OULA Chute DE L’APPAREIL peut blesser ’EMPLOI Excessif peutInformation sur les champs é lectromagné tiques Principales normes de sé curitéConsignes relatives aux stimulateurs cardiaques Manufacturer’s Warning Label Definitions Definitions60 s I1max Symbols And DefinitionsI1eff Manufacturer’s Rating Label Specifications InstallationDuty Cycle And Overheating Volt-Ampere Curves Dimensions And WeightCV Modes CC Modes Movement Tipping Selecting a LocationLocation ARC Welding can cause Electromagnetic Interference Weld Output Terminals And Selecting Cable SizesTerminals Socket Remote 14 Receptacle InformationVolts AC Duplex Receptacle Electrical Service GuideAlways connect grounding conductor first Connecting Input PowerFront Panel Controls OperationMeter Functions PPPMode Output Control Mode Switch SettingsLift-Arc TIG Procedure Do not remove case when blowing out inside of unit Maintenance & TroubleshootingBlowing Out Inside Of Unit Removing Case and Measuring Input Capacitor Voltage Help 3 Display Voltmeter/Ammeter Help DisplaysTrouble Remedy TroubleshootingCircuit Diagram For Welding Power Source Electrical Diagram192 Complete Assembly Parts ListDia Part Description Mkgs Quantity HD1 168 OM-188 422 OM-188 422 Support ServiceMiller Electric Mfg. Co Owner’s Record
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