The analog meters are not reading correctly, Troubleshooting & repair, Caution – Lincoln Electric IDEALARC DC-655 User Manual
Page 52
TROUBLESHOOTING & REPAIR
F-10
F-10
IDEALARC DC-655
Observe Safety Guidelines
TROUBLESHOOTING GUIDE
detailed in the beginning of this manual.
CAUTION
If for any reason you do not understand the test procedures or are unable to perform the test/repairs safely, con-
tact the Lincoln Electric Service Department for electrical troubleshooting assistance before you proceed. Call
1-800-833-9353.
PROBLEMS
(SYMPTOMS)
POSSIBLE AREAS OF
MISADJUSTMENT(S)
RECOMMENDED
COURSE OF ACTION
FUNCTION PROBLEMS
The optional digital meter is not
working properly and/or the dis-
play is erratic.
1. Make certain plugs P12 and
P13 are securely plugged into
the digital meter PC board.
Also make sure plug P3 is
securely plugged into the con-
trol board.
1. Check feedback leads #222,
#210, #201 and #202 for loose
or faulty connections. See the
Wiring Diagram.
2. The optional digital meter PC
board may be faulty.
The analog meters are not reading
correctly.
1. Make sure plug P3 is securely
plugged into the control board
and plug J14 is securely seated
in the plug assembly from the
control board.
1. Check feedback leads #222,
#210, #201 and #202 for loose
or faulty connections. See the
Wiring Diagram.
2. The meter(s) may be defective.