The aux release button will kill the machine, don't know why they have it do that. Not much need for the button, the couplers will relieve pressure by pushing in before uncoupling. Anyways, what I'd your machine doing, not turning over, or turning over but not firing. Any codes being set when trying to start? Need to know this before guess the problem.Sounds like it's loaded up maybe you can relive the pressure out the aux coulpling