Section f- troubleshooting and repair, Warning – Lincoln Electric LN-25 SVM114-C User Manual
Page 39
TABLE OF CONTENTS
- TROUBLESHOOTING AND REPAIR SECTION -
LN-25™
Troubleshooting and Repair . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Section F
How to Use Troubleshooting Guide . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
PC Board Troubleshooting Procedures . . . . . . . . . . . . . . . . . . . . . . . . . .
Troubleshooting Guide . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Test Procedures
Gas Solenoid Valve and Solenoid PC Board Test . . . . . . . . . . . . . . .
Gas Solenoid Valve and Control PC Board Test . . . . . . . . . . . . . . . .
Hall Effect Module Test . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Wire Drive Motor Test . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Contactor & Contactor PC Board Test . . . . . . . . . . . . . . . . . . . . . . . .
Component Replacement Procedures
Contactor PC Board Replacement . . . . . . . . . . . . . . . . . . . . . . . . . .
Control PC Board Replacement . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Contactor Replacement (codes below 10500) . . . . . . . . . . . . . . . . .
Contactor Replacement (codes above 10500) . . . . . . . . . . . . . . . . .
Gas Solenoid Valve and/or Solenoid
PC Board (If Present) Replacement . . . . . . . . . . . . . . . . . . . . . . . .
Drive Motor And Gearbox Replacement and
. . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Section F
Section F
WARNING
ELECTRIC SHOCK can kill.
• Never work on the inside of the machine without removing the
input power. You can receive a life threatening electrical shock if
you fail to do this. Only qualified technicians should perfor m
i n s t a l l a t i o n , m a i n t e n a n c e, a n d t r o u bl e s h o o t i n g wo r k o n t h e
machine.