My friends Craftsman air compressor stopped running

My compressor runs for about 5 min and shuts off.....does any one knows what could be the problem?

thanks

Sources of noise from craftsman oil free compressors (could be Made by Campbell Hausfeld or Porter Cable) include loose fan, failing bearing/s on the piston rod and housing, failing seal ring on piston, air filter intake and loose motor mounts. With the housing cover off, check the fan blade for cracks or loose screw. Turn motor by hand till the piston is at top of stroke. Examine the cylinder for scratches close to top. If scratched, air is leaking past vinyl ring making noise and causing longer fill time. If everything looks ok, suspect noise coming from bearings. Hard to tell if bearings are failing by looking at them. I have seen many failures of the piston bearing on the crank (fairly easy to change, I use alternator bearing from auto parts ) , however, the bearing in the housing just behind the crank bearing is much harder to replacable. Good luck with your fix-it project.

Some of the craftsmen compressors have pistons that are coated on the top of the dome. Once the coating wears off, they have severe loud piston slap. If you continue to run it the way it is, it will snap the connecting rod in half or break the piston and possibly the cylinder.

Cold weather will freeze the water the compressor normally makes and this can prevent the switch diaphragm from releasing.... also drain the tank

It sounds like the capacitor has failed on the motor (under the little metal cover). Go to motor shop with old one and test/replace.

If you need further help, I’m available over the phone at https://www.6ya.com/expert/craig_3fa289bf857b1a3c

sounds like the belt is slipping have you checked the inlet and discharge valves also could be bad and leaking or stuck or installed wrong

check the oil level of the cranckcase first

Hi, First, I think the cutoff pressure is 135psi and there is an overpressure valve so let it run a little longer. I don't know exactly which model you have ( some of these were oil less) but if it is running longer than you remember, be sure to check the oil if necessary, make sure you are not using a long extension as this will cause the motor to slow down and definitely check to make sure the water is drained and the drain petcock is closed all the way. Also check it without an air hose attached. Good Luck!

i broke the rod in my air compressor and cant find a place to buy a new one it is a pro source

My air compressor builds up to 40 psi and just keeps running, i have a craftsman 5 GAL, 1HP, 125 PSI and pressure goes up to 40 psi and dose not go any higher and on the other hand engine keeps running and dose not stop. Please advise?
Thanks.
Kia