Lincoln Electric SVM114-C service manual GAS Solenoid Valve and Control PC Board Test

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F-13 TROUBLESHOOTING AND REPAIR F-13

GAS SOLENOID VALVE AND CONTROL PC BOARD TEST

(FOR CODES ABOVE 10500 ONLY)

WARNING

Service and repair should be performed by only Lincoln Electric factory trained personnel. Unauthorized repairs performed on this equipment may result in danger to the technician or machine operator and will invalidate your factory warranty. For your safety and to avoid electrical shock, please observe all safety notes and precautions detailed throughout this manual.

If for any reason you do not understand the test procedures or are unable to perform the test/repairs safely, contact the Lincoln Electric Service Department for electrical trou- bleshooting assistance before you proceed,. Call 1-888-935-3877.

TEST DESCRIPTION

This test will determine if the gas solenoid valve or the control PC board valve actuation circuitry is functional.

MATERIALS NEEDED

Phillips Head Screwdriver 12 VDC Supply Volt/Ohmmeter

DC Voltage Source (25 to 100 VDC)

NOTE: LN-25™ units with the L12253-[ ] Control Board do not use a Contactor PC Board. Codes above 10100 may have been upgraded to use this Control Board and must be tested accordingly.

LN-25™