This compressor absolutely will NOT run on 15 amps. Either the motor bogs down and won't run or it will pop the breaker. This makes this compressor almost usless for me because I can never find anywhere to plug it in. And if you DO find a 20 amp circiut to run it on forget about running any other tools on that circuit.Also it is overly loud. I was just working in a basement at the same time as a guy that had a Hitachi compressor and his was less than HALF as loud.
I have NEVER been disappointed with anything from PC... until now.
I wrote the above review a week ago... Here's an update.
The guy helping me tripped over the air hose and it caught on the little shutoff lever. This piece is connected to a plastic piece inside the electrical hosing, which broke off. This piece of plastic is about the size of a pencil lead. Now my compressor won't even shut off. If you leave it run it will pump up to 175 psi and then blow the relief valve. And I now have to go plug it in to make it turn on since the switch is broken off.
This tool is NOT made to be used at a construction site. I'm seriously thinking about just leaving this for the garbage man and buying the DeWalt Emglo compressor.
Another update...
I ended up buying a CastAir air compressor. CastAir is not a commercial brand, but the factory where they are made is about 2 miles from my house in Chaska, MN. These compressors were only recently made available to non-commercial applications (previously they specialized in huge compressors used in body shops, etc.). I LOVE my new 4 gal. twin tank. It's quiet, powerful, and SOLID as a ROCK!!! A REAL contractor grade compressor for the same amount as I paid for this PC. I have NO relationship or incentive to recommend CastAir other than I'm a very satisfied customer. Check them out if you want a REALLY great compressor.