Starting a 3hp 20 gallon compressor
Acting just like a start capacitor.
Gives a half crank and stalls till breaker trips.
I'm leaning towards a start cap.
My only question is that when I disconnect the belt to the motor it starts up and runs fine. Just with a load off the compressor does it do it. Still the start cap??
Can't be sure as I don't have enough info to decide.
Tell me about the power supply. 120 VAC? Extension cord? Breaker amperage? Age of compressor? What ambient temperature is when you are trying to start the compressor? Will the compressor start and run OK with the tank empty?
Sure, could be the start cap, but could be other things that cause your compressor to start and pop the breaker.