Lincoln Electric IM490-C Welder User Manual


 
E-4
TROUBLESHOOTING & REPAIR
E-4
INVERTEC V250-S
Observe all Safety Guidelines detailed throughout this manual
OUTPUT PROBLEMS
PROBLEMS
(SYMPTOMS)
POSSIBLE AREAS OF
MISADJUSTMENT(S)
RECOMMENDED
COURSE OF ACTION
Output turns on momentarily, then
switches off and repeats cycle.
Remote output control not
functioning. The machine operates
normally on LOCAL control.
1. Check the input voltages and
reconnection procedures. Make
sure the input voltage is correct
for the machine. See Input
Voltage Reconnect Procedure.
2. Check or replace remote control
device. (If used)
1. Make sure the Local/Remote
switch (S3) is in the REMOTE
position.
2. The remote control device may
be faulty. Replace.
If all recommended possible areas of
misadjustment have been checked
and the problem persists, Contact
your local Lincoln Authorized Field
Service Facility.
If for any reason you do not understand the test procedures or are unable to perform the tests/repairs safely, con-
tact your local authorized field service facility for technical troubleshooting assistance before you proceed.
CAUTION