Ok today my service looked at a 2000 lifeline with a 72" headroom and air ride. the only way we can get one with 72" headroom is with the air ride so we can lower it to get into the shed. So to the point we were test driving it and every now and then about ever 10 min. the compressor turns on for the airbags. Is it normal for the compressor to turn on that often or should we be worried.