MAT Industries C151I Owner's Manual page 18

PROBLEM
Regulated This is normal
pressure
gauge reading
Compressor not
drops when
large enough
air accessory
is being used
Pressure relief Tank pressure
valve opens exceeded normal
operating pressure
Pressure switch stuck
Motor will Tank pressure exceeds
not run preset pressure switch
limit
Make sure the Thermal
Overload Switch has not
tripped. The motor has
a built in thermal cut out
that trips when necessary
to protect the motor
from damage when
overheated.
Fuse blown or circuit
breaker tripped
Check valve stuck open
Wrong wire gauge in cord
or excessive extension
cord length
Loose electrical
connections
Paint spray on internal
motor parts
Possible defective motor Have checked at service center.
CAUSE
If pressure drops too low, adjust
regulator while accessory is used.
Check air requirement of accessory.
If it is higher than CFM and pressure
supplied by compressor, you need a
larger compressor. Most accessories
are rated at 25% of actual CFM
while running continuously.
Replace pressure switch
Replace pressure switch
Motor will start automatically when
tank pressure drops below cut- in
pressure of pressure tank.
To reset the motor overload toggle
turn the Power Switch to the OFF
position and unplug the unit from
the power outlet. Allow 10 minutes
(minimum) for motor overload cut-
out to cool and reset. Unit can then
be plugged in and re-started.
• Replace blown fuse or reset circuit
breaker. Do not use fuse or circuit
breaker with higher rating than
specified for your branch circuit.
• Check for proper fuse; "Fusetron"
type T is acceptable.
• Check for low voltage and
proper extension cord size.
• Disconnect other applications
from circuit. Operate compressor
on a dedicated circuit.
Remove and clean or replace.
Check for proper gauge and extension
cord length.
Contact authorized service center.
Have checked at service center. Do
not operate compressor in the paint
spray area
18- ENG
CORRECTION