E-2

TROUbLESHOOTING

E-2

 

 

 

 

Observe all Safety Guidelines detailed throughout this manual

 

PRObLEMS

(SYMPTOMS)

POSSIbLE

CAUSE

RECOMMENDED

COURSE OF ACTION

 

Major physical or electrical damage

1. Contact your local authorized

 

is evident when the sheet metal

Lincoln Electric Field Service facil-

 

covers are removed.

ity for technical assistance.

 

Machine won’t weld, can’t get any

1. If the displays show an Err ###

 

output.

see the fault section for corrective

 

 

action.

 

 

2 If the thermal symbol is lit refer to

 

 

the thermal section.

 

 

3 If the output terminals are in

 

 

remote control switch to "ON" and

 

 

check for output voltage. If output

 

 

voltage is now present check for

 

 

correct remote control connection

 

 

and operation.

 

 

 

 

Thermal symbol is lit.

1. Check for proper fan operation.

 

 

• Check for material blocking

 

 

intake or exhaust louvers.

 

 

• Blow air in the rear louvers to

 

 

clear dirt from the fan.

 

 

Note: The Fan As Needed circuitry

 

 

automatically shuts off the fan

 

 

5 minutes after welding has

 

 

stopped.

 

 

2. Welding output ratings may have

 

 

been exceeded. Allow the

 

 

machine to cool down and reset.

 

 

 

 

Wire feeder won’t work. Apparently

1. Check circuit breakers by the wire

 

no power to wire feeder

feeder receptacles on the rear of

 

 

the machine. Reset

 

 

2. Check the control cable between

 

 

the power source and the wire

 

 

feeder for continuity.

 

 

 

 

 

 

1.If all recommended possible areas of misadjustment have been checked and the problem persists,

Contact your local Lincoln 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 Lincoln Authorized Field Service Facility for technical troubleshooting assistance before you proceed.

FLEXTEC™ 450 CE

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Lincoln Electric 450 CE manual PRObLEMS, Symptoms, POSSIbLE, Cause Recommended Course of Action