probably not your problem but...
i also installed a new ab same as yours, awhile back. turned it on and went home. figured the next day i would have a cold box.
i came back the next morining to a warm box and a cycling compressor. would try to start, then stop. a few minutes later it would try to start again.
i called ab and they told me they already knew the problem.
when the compressor needs to be started the controller sends it a jolt of higher voltage to get the motor
moving, then cycles back to the normal running voltage. but the summer i installed it was so hot that the jolt they had programmed in wasn't enough. they sent me a new controller with a higher jolt voltage and all was well. never had a problem of any kind ever again.