Specifications
Check
gun
trigger.
See
gun
Owners
Manual.
Readjust
hub
tension
and
drive
roll
pressure
(see
Section
3.13).
Change
to
correct
size
drive
roll
(see
Section
13.6).
Clean
or
replace
dirty
or
worn
drive
roll.
Incorrect
size
or
worn
wire
guides.
Replace
contact
tip
or
liner.
See
gun
Owners
Manual.
Remove
weld
spatter
or
foreign
matter
from
around
nozzle
opening.
Have
Factory
Authorized
Service
Agency
check
drive
motor
or
motor
control
board
PCi.
Check
for
correct
input
voltage.
Check
for
a
short
between
welding
gun
trigger
leads
and
weld
cable.
Repair
short
or
replace
weld
ing
gun.
11
3
Troubleshooting
~
A
Disconnect
power
before
troubleshooting
Trouble
Wire
feeds,
shielding
gas
flows,
but
electrode
wire
is
not
energized.
Wire
feeder
is
on,
meter(s)
do
not
light
up,
motor
does
not
run,
gas
valve
and
welding
power
source
contactor
do
not
pull
in.
Electrode
wire
feeding
stops
or
feeds
erratically
dunng
welding.
Remedy
Check
interconnecting
cord
connections.
If
secure,
check
cord
for
continuity
and
repair
or
replace
(see
Sections
3.5
and
3.7).
Check
and
reset
CB1
(see
Section
4.4).
Check
gun
trigger
connection.
See
gun
Owners
Manual.
Motor
runs
slowly.
Wire
does
not
feed
until
trigger
is
pulled,
but
continues
to
feed
after
trig
ger
is
released,
and
trigger
hold
is
not
on.
Gas
valve
in
feeder
is
rattling
loudly
along
with
possible
erratic
or
slow
wire
feed
speed.
Check
for
a
short
between
welding
gun
trigger
leads
and
weld
cable.
Repair
short
or
replace
weld-
ing
gun.
Unit
does
not
switch
out
of
Run-In
Speed.
Install,
reconnect,
or
replace
voltage
sensing
lead.
Wire
feeder
power
is
on,
displays
light
up,
but
unit
is
inoperative.
Check
welding
gun
trigger
leads
for
continuity,
and
repair
leads
or
replace
gun.
OM-1
586
31