Air compressor not working, campbell, hausfield turns on but doesn't make loud noise it used to seems like it is not kicking in. It just sounds like a loud vacuum cleaner. Campbell Hausfeld WL6501 13 Gallon ASME Horizontal Air Compressor
Air Tools & Compressors - Campbell Hausfeld
Answers & Comments
If your motor is running and not the pump, the malfunction is either in the pump or the coupling between the motor and the pump.
Some of these compressors are manufactured so cheap now that there can be just a set screw that is loose and the motor shaft is spinning free inside of the crankshaft.
If you drain the oil out of the pump and take off the pump crankcase cover, you should be able to see the problem.