6
Symptom
Possible Cause(s)
Possible Solutions
Fuse blown or circuit breaker
tripped
Check for cause of blown
fuse/breaker and replace
Loose electrical connections
Check wiring connections
Overheated motor
Turn compressor off, wait until total cool
down. Check to insure the motor is
rotating "clockwise" when facing the
front of the compressor before
restarting
Air leak in safety valve
Check valve manually by pulling
upwards on ring. If condition
persists, replace valve
Defective check valve
Replace check valve
Safety valve releasing
Defective pressure switch or
improper adjustment
Check for proper adjustment and if
problem persists, replace pressure
switch
Loose drain valve
Tighten drain value
Loose connections at regulator or
pressure switch
Check connections for leaks, seal
with teflon tape
Excessive water in tank
Drain tank through drain valve
Humidity too high
Move compressor to an area of less
humidity.
Improper oil viscosity
Replace oil with SAE 20-30 weight
non-detergent oil
Too much oil in crankcase
Drain crankcase and fill to proper
level
Compressor overheated
Air pressure regulated too high
Restricted air filter
Clean or replace filter
Worn piston rings
Replace piston rings
Oil discharge in air
No start condition
Low pressure
Tank pressure drops
when compressor is shut
off
Excessive moisture
coming out of air hose