Lincoln Electric IM723-A - Manual (Page 20)

E-2 TROUBLESHOOTING E-2
UNDER-COOLER CART
Observe all Safety Guidelines detailed throughout this manual
If for any reason you do not understand the test procedures or are unable to perform the tests/repairs safely, contact your
Local Lincoln Authorized Field Service Facility for technical troubleshooting assistance before you proceed.
CAUTION
PROBLEMS
(SYMPTOMS)
POSSIBLE AREAS OF
MISADJUSTMENTS
RECOMMENDED
COURSE OF ACTION
Cooler does not operate
Internal water leak.
Torch or gun runs hot.
Fan operates but there is low
coolant flow.
Fan operates but there is no
coolant flow.
Pump operates, but fan does not.
1. Input cord unplugged.
2. Power harness damaged.
3. Water lines blocked or crimped.
4. Leak in gun or water hoses.
5. Coolant reservoir empty.
6. The system needs to be primed.
1. Hose clamp loose on one of
internal hoses.
2. Internal hose punctured.
3. Heat exchanger leaking.
4. Pump seal is leaking.
1. Unit placed by area of extreme
heat.
2. Low coolant flow.
3. No coolant flow.
4. Fan not operating.
5. Heat exchanger clogged.
6. Pump seal is leaking
1. Leak in torch/gun or hoses.
2. Torch/gun or hoses partially
obstructed.
3. Reservoir empty or very low.
4. Pump Strainer is dirty.
1. Pump or pump motor failure.
2. Pump strainer is blocked.
1. Loose or disconnected fan lead.
2. Obstruction in fan blade.
3. Fan motor failure.
If all recommended possible areas
of misadjustment have been
checked and the problem persists,
Contact your local Lincoln
Authorized Field Service Facility.