Lincoln Electric IM794 SP-170T - Manual (Page 29)

E-2
E-2 TROUBLESHOOTING
SP-170T
PROBLEMS
(SYMPTOMS)
Major physical or electrical damage
is evident.
No wire feed, weld output or gas
flow when gun trigger is pulled. Fan
does NOT operate.
No wire feed, weld output or gas
flow when gun trigger is pulled. Fan
operates normally.
POSSIBLE
CAUSE
None
Contact your local Authorized Field
Service Facility.
1. Make sure correct voltage is
applied to the machine. See
Installation section,
“ Electrical
Connections ” .
2. Make certain that power switch
is in the ON position.
3. Make sure circuit breaker is
reset.
1. The thermostat may be tripped
due to overheating. Let machine
cool. Weld at lower duty cycle.
2. Check for obstructions in air
flow.
3. Check Gun Trigger connections.
See Installation section.
4. Gun trigger may be faulty.
RECOMMENDED
COURSE OF ACTION
Contact your local Lincoln
Authorized Field Service Facility.
OUTPUT PROBLEMS
If for any reason you do not understand the test procedures or are unable to perform the tests/repairs safely, contact your
LOCAL AUTHORIZED LINCOLN ELECTRIC FIELD SERVICE FACILITY for assistance before you proceed.
CAUTION
Observe Safety Guidelines detailed in the beginning of this manual.