Troubleshooting Guide
SYMPTOM
CAUSE
SOLUTION
Unit fails to start - Motor
makes no noise
Insufficient power to
compressor
Source electric to the compressor is either the incorrect voltage,
insufficient wire size to carry the load, the fuse box or breaker box is not
sufficient to carry the load requirements to the compressor.
Unit wired incorrectly
Any wiring other than what is stated in the manual could cause a
malfunction (see Wiring Section).
Wrong voltage supplied to
unit
Make sure voltage is correct with the motor wiring (see Wiring Section).
Loose electrical connections
The entire electrical system should be checked by a certified electrician.
The incoming wires and the compressor electrical connections should
be checked. Loose connections will cause malfunctions.
Wrong size wiring
Check that wire size is rated for the current of the compressor. State and
local codes vary widely and need to be checked before installation.
Blown fuse and / or tripped
breaker
The breaker and fuses required for this unit must be time delay.
A tripped breaker or blown fuse may result from a direct short to
ground, high current draw, improper wiring, incorrect fuse or breaker
size and/or type. This needs to be evaluated by a service center or
certified electrician.
Starter overload tripped
Check and reset if necessary. If the overload trips after the initial reset,
refer to the section of the manual that covers this issue.
Unit starts but does not
get to full speed
Insufficient power to
compressor
Source electric to the compressor is either the incorrect voltage,
insufficient wire size to carry the load, the fuse box or breaker box is not
sufficient to carry the load requirements to the compressor.
Loose electrical connections
The entire electrical system should be checked by a certified electrician.
The incoming wires and the compressor electrical connections should
be checked. Loose connections will cause malfunctions.
Unit does not make any
or very little air
Drain valve open
Make sure the drain valve at the bottom of the tank is closed.
Air leak
Check the entire system for leaks, including the compressor unit and
any piping attached to the compressor
Restricted or blocked intake
Make sure that the air intake of the compressor is not blocked in any
way.
Unit runs very noisy
Damage to the compressor
Check to make sure the compressor has not been damaged in the
shipping or installation. Make sure the belt guard was not damaged.
Belt guard should not be making contact with flywheel or pulley.
Loose fasteners
Check all bolts and nuts to assure they did not loosen during shipping.
Loose pulleys or belts
Check to assure pulley and flywheel are correctly tightened.
Oil smoke out of inlet on
shutdown
Normal operation
A small amount of oil may be released with the high pressure air that
vents through the air filter.
Do not remove air fi lter housing or perform any
maintenance with pressure in the air end or air
pressure tank.
18
Operating Instructions
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