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TROUBLESHOOTING GUIDE - Observe Safety Guidelines detailed in the beginning of this manual.
If for any reason you do not understand the test procedures or are unable to perform the tests/repairs safely,
contact the Lincoln Electric Service Department for technical troubleshooting assistance before you proceed.
Call 1-888-935-3877.
CAUTION
TROUBLESHOOTING AND REPAIR
F-11 F-11
POWERARC® 5500
WELDING PROBLEMS
PROBLEMS
(SYMPTOMS)
POSSIBLE AREAS OF
MISADJUSTMENTS(S)
RECOMMENDED
COURSE OF ACTION
The welding arc is “cold.” The
engine runs normally (3700 RPM, no
load). Auxiliary power is func tioning
normally.
1. Check for the correct open cir-
cuit voltage (OCV) at the welder
output terminals – 62 VAC is nor-
mal.
If the correct voltage is present
at the output terminals, check for
loose connections on the heavy
current-carrying leads inside the
POWERARC® 5500. See the
Wiring Diagram.
2. If the OCV is low at the welder
output terminals, perform
Engine Throttle Adjustment
Test.
3. Check for shorted or grounded
windings in the reactor (L1) and
also in the main stator.
See the Wiring Diagram.
1. Check for loose or faulty con -
nections at the weld output
terminals and welding cable con-
nections.
2. The welding cable may be too
long or coiled, causing an exces-
sive voltage drop.
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