Agree with john jay, a competent elevator company should be able to troubleshoot your problem and come up with a solution. I don't have enough info to try to diagnose the problem (what is actualy happening, type equip.,and so on). How old is the job, does it do this constantly(releveling), is it only when going up to answer a call, how long has it been doing this and is it getting worse. It could all be in the valve, could be a multitude of things.
