I didn't want to start a whole new thread for one question, is it normal for the car to sometimes lower to access height when switched off unless the inhibit switch is pressed? There aren't any leaks anywhere, the compressor is good, the overheat switch is good and so is the pressure switch, the valve block has had replacement o rings and diaphragm. I do get an occasional 'pressure signal constantly high' fault and once got a 'pressure signal constantly low' fault which dropped the car and started the 35mph warning. Sorry if this has been answered before but I don't have time to trawl through millions of eas fault threads, thanks.