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a. Power cord unplugged.
b. No power at outlet.
c. Power cordset damaged.
d. Unit too hot. Thermal protector
tripped.
e. Water lines blocked or crimped.
f. Unit is used in a demand system
and water valve or solenoid dam-
aged.
g. Leak in gun or water hoses.
h. Reservoir empty.
I. Power switch faulty.
j. Solenoid valve is closed.
k. Female quick-connect fittings are
not connected to male fittings.
a. Water lines partially blocked or
obstructed.
b. Internal hose or heat exchanger is
blocked.
c. Restriction is too high for the
Cooler being used.
a. Water lines partially blocked or
obstructed.
b. Water valve or solenoid failure.
c. Internal hose or heat exchanger is
blocked.
d. Restriction is too high for the
Cooler being used.
a. Leak in gun or water hoses.
b. Demand system stress. System
not used for long period of time
with Cooler left on. (Power switch
pushed to “|”).
a. Hose clamp loose on one of inter-
nal hoses.
b. Internal hose punctured.
c. Heat exchanger leaking.
d. Pump experiencing “soft” failure
and leaking around plastic hous-
ing of pump head.
e. Pump head cracked.
Cooler does not operate with power
switch on.
(Switch pushed to
"1" position.)
Power switch blinks or flickers while
coolant is flowing. (Continuous use,
NO Water Valve or Solenoid in the
system.)
Using a water valve or solenoid and
power switch blinks or flickers while
coolant is flowing or when flow is
stopped.
Using water valve or solenoid and
power switch light turns on and off
when not in use.
Internal water leak.
a. Plug in power cord.
b. Check outlet circuit breaker.
c. Repair damaged cord or order
new cordset.
d. Allow unit to cool. Relocate unit
away from source of heat.
e. Clear blockage in hose. Avoid
kinking or putting sharp bends in
water lines.
f. Repair water valve or solenoid.
g. Repair leak.
h. Fill reservoir.
I. Replace power switch.
j. Pull trigger on welding gun to open
solenoid valve.
k. Connect all quick connect fittings
to their mating parts.
a. Clear blockage in hose. Avoid
kinking or putting sharp bends in
water lines.
b. Carefully clear blockage. Clean all
hoses and the reservoir.
c. Use the Cooler 20-I for MIG appli-
cations. Cooler 10-I can be used
for either MIG or TIG applications.
a. Clear blockage in hose. Avoid
kinking or putting sharp bends in
water lines.
b. Repair or replace water valve or
solenoid.
c. Carefully clear blockage. Clean all
hoses and the reservoir.
d. Use the Cooler 20-I for MIG appli-
cations. Cooler 10-I can be used
for either MIG or TIG applications.
a. Repair leak.
b. Turn power switch off when not in
use. (Power switch pushed to
“O”). DO NOT LEAVE POWER
ON WHEN COOLER IS NOT IN
USE FOR A LONG PERIOD OF
TIME.
a. Tighten or replace hose clamp.
b. Replace punctured hose with new
hose.
c. Replace heat exchanger.
d. Repair pump with S20095-1 or
S20095-3 Pump Replacement Kit
or S20095-2 Pump Rebuild Kit.
e. Replace pump head with S20095-
1 or S20095-3 Pump
Replacement Kit.
E-2
TROUBLESHOOTING
E-2
MAGNUM COOLER 10-I & 20-I
Observe all Safety Guidelines detailed throughout this manual
PROBLEMS
(SYMPTOMS)
POSSIBLE AREAS OF
MISADJUSTMENTS(S)
RECOMMENDED
COURSE OF ACTION