Coleman 1.5 hp, 95-125psi, 11 gal air compressor won't run
This is an oilless, Single Stage, Direct Drive, Electric Air Compressor. Will not run. If completely depressured, and after some time it will cycle the pump a few times and then quit. There is power after the pressure switch. Disconnected from the tank, so not the check valve. What else could it be?
Sandy, a model number would have helped me try to find your air compressor on line, so I could check the specs.
Typically, a compressor problem that you have posted can be caused by insufficient power. In an air compressor, that could be caused by using a too long and too small extension cord, or a power bar.
In terms of equipment failure, a weakened or failed start capacitor would also cause your compressor symptoms.
Your post says your compressor is a 5.5 HP. That means you are supplying it with 220 volts, right?