Husky 80-GALLON STATIONARY AIR COMPRESSOR Use And Care Manual page 25

Troubleshooting (continued)
Problem
The motor hums and runs
slowly, or the motor does
not run at all.
The reset mechanism
cuts out repeatedly or
the circuit breaker trips
repeatedly.
The tank does not hold
pressure when the
compressor is off and the
shut off valve is closed.
The pressure switch
continuously blows air out
of the unloader valve.
There is excessive
vibration.
Possible Cause
□ The voltage is low.
□ There are too many devices on the
same circuit.
□ The electrical connections are loose. □ Check all the electrical connections.
□ The pressure switch is
malfunctioning - the contacts will
not close.
□ The check valve is malfunctioning.
□ The unloader valve on the pressure
switch is defective.
□ The motor capacitor(s) are defective. □ Replace the capacitor(s).
□ The motor is defective.
□ There is not proper ventilation for
the air compressor unit, or the room
temperature too high.
□ There are too many devices on the
same circuit.
□ The air intake is restricted.
□ The electrical connections are loose. □ Check all the electrical connections.
□ The pressure switch shut-off
pressure is set too high.
□ The check valve is malfunctioning.
□ The unloader valve on the pressure
switch is defective.
□ The motor capacitor(s) are defective. □ Replace the capacitor(s).
□ The motor is defective.
□ There are air leaks in the fi ttings,
tubing on the compressor, or the
plumbing outside the unit.
□ The check valve is worn.
□ Check the tank for cracks or pin
holes.
□ The check valve is malfunctioning.
□ The fasteners on the pump or the
motor are loose.
□ The belt needs to be replaced.
□ The belt needs to be aligned.
Solution
□ Check incoming voltage. It should be approximately 240 volts.
The motor will not run properly on 208 volts. Low voltage could
be due to wires (from electrical source to compressor) being too
small in diameter and / or too long. Have a qualifi ed electrician
check these conditions and make repairs as needed.
□ Limit the circuit to the use of the compressor only.
□ Replace the pressure switch.
□ Replace the check valve. Do not disassemble the check valve with
air pressure in the tank.
□ Replace the unloader valve.
□ Replace the motor.
□ Move the compressor to a well-ventilated area.
□ Limit the circuit to the use of only the air compressor.
□ Clean or replace the air fi lter element.
□ Replace the pressure switch.
□ Replace the check valve. Do not disassemble the check valve with
air pressure in the tank.
□ Replace the unloader valve.
□ Replace the motor.
□ Listen for escaping air. Apply soap solution to all fi ttings and
connections. Bubbles will appear at points of leakage. Tighten or
replace leaking fi ttings or connections. Use pipe thread sealant.
□ Replace the check valve. Do not disassemble the check valve with
air pressure in the tank.
□ Replace the tank. Never try to repair a damaged tank.
□ Replace the check valve if the unloader valve on the pressure
switch bleeds off constantly when the unit shuts off. Do not
disassemble the check valve with air pressure in the tank.
□ Tighten the fasteners.
□ Replace the belt. Make sure to use the correct size.
□ Align the fl ywheel and the pulley.
25
Please contact 1-888-43-HUSKY for further assistance.
HUSKYTOOLS.COM