SYMPTOM
When in the Start/Stop Option,
motor runs continuously.
Moisture in discharge air.
Excessive oil consumption or oil in
hose.
Oil has milky appearance.
Unit runs backward.
16
TROUBLESHOOTING
PROBABLE CAUSE
Motor/Pressure Switch does not
shut off motor when air compres-
sor reaches "cut-out" pressure and
safety relief valve activates.
Air compressor is incorrectly
sized.
Condensation in air tank caused
by high level of atmospheric hu-
midity.
Restricted air intake filter.
Air compressor on unlevel surface.
Crankcase overfilled with oil.
Wrong viscosity.
Plugged oil dipstick vent.
Oil leaks.
Worn piston rings or scored
cylinder.
Water in oil due to condensation.
Reversed wiring.
Work Pro Portable Electric Air Compressor Manual
REMEDY
Move the Motor/Pressure Switch
to the "OFF" position. If the motor
does not shut off, unplug the air
compressor. If the electrical con-
tacts are welded together, replace
the pressure switch.
Limit the air pressure to the capac-
ity of the air compressor. Either
use a smaller tool or a larger air
compressor.
Run air compressor a minimum of
one hour to prevent condensation
buildup. Drain air tank after every
use. Drain air tank more often in
humid weather and use an air line
filter.
Clean or replace.
Do not incline the air compres-
sor more than 10° in any direction
while running.
Drain oil. Refill to proper level with
SAE-30W non-detergent oil.
Drain oil. Refill to proper level with
SAE-30W non-detergent oil.
Clean.
Tighten pump bolts to torque stated
in Parts List, or replace gaskets.
Contact Mi-T-M
Customer
®
Service.
Change oil and move air
compressor to a less humid
environment.
Contact qualified electrician.