I just guess - it looks like these things have a No-Volt-Release Switch meaning that if the power fails when it's running it will not automatically start up again when the power comes back - the operator needs to press the go button.
My guess is that the NVR switch has been incorrectly wired - I doubt very much that the start run capacitor is causing the problem.
I have no experience with these things. I just guess...
Good Luck..., January 2017