compressor wont turn on - buzzing sound
my 12 gal. comp wont turn on. when i flick the switch,it buzzes like it wants to turn on but dosent
Steve, first, shut off, dump all the air from the tank, plug it in and turn it back on.
If so, it may be your unloader valve.
If no change, visit the Troubleshooting page, and click the link to Will Not Start for more tips.
919.167310 Motor running - blows breaker
Craftsman 919.167310 Motor running (But sounds different), Piston moving, but no compression and blows breaker
I have a Craftsman 6hp 30 gallon Air compressor. I have had it for 8 years. Never any problems till now. I plugged it in and started the compressor. It ran like normal for 1 minute then blew breaker. When restarted, the motor was very quiet and will flip breaker after 15 seconds of running. I took the cover off and replaced the compression ring with a new one, then reassembled. Same issue. The tank has 0 pressure, and I even tried starting with the drain valve open for kicks, but no good. Motor seems to spin fine, moving piston as it should but no pressure and substantially quieter. Help!
Robert, when you replaced the piston ring, did you examine the valve plates and the gaskets?
A blown gasket would make a change in sound, as would a valve failing.
The popping the breaker is electrically related, of course, and that may or not be connected to the noise change.
An overload motor will pop the breaker, and that could be the result of back pressure, mechanical issues, intake filter being plugged, check valve not operating properly, capacitor weakening, or the motor itself failing, among others.