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TROUBLESHOOTING & REPAIR
F-11 F-11
WELDANPOWER 125
TROUBLESHOOTING GUIDE Observe Safety Guidelines
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
216-383-2531 or 1-800-833-9353.
PROBLEMS
(SYMPTOMS)
POSSIBLE AREAS OF
MISADJUSTMENT(S)
RECOMMENDED
COURSE OF ACTION
ENGINE PROBLEMS
Engine will not go to high idle when
attempting to weld. Welding output
is normal when the idler control
switch is in the “HIGH” position.
Automatic idle function works
properly when the auxiliary power
is loaded.
1. Make sure the welding cables
and connections are tight.
1. Make sure the #W1 lead is
looped through the current
transformer. See Wiring
Diagram.
2. Check for loose or faulty con-
nections on the heavy current
carrying leads connected to the
output terminals, the choke (L1)
and the output rectifier bridge
(D2).
Engine will not go to high idle when
using the auxiliary power. Auxiliary
power output is normal when the
idler control switch is in the “HIGH”
position. Automatic idle function
works properly when the welding
output is loaded.
1. Make sure that the auxiliary
load is more than 100 watts.
2. Check for loose or faulty con-
nections at the auxiliary output
receptacles.
1. Make sure that leads #3A and
#6A are looped through the cur-
rent transformer in the proper
direction. See Wiring Diagram.