Coach on <br/>Travel light on<br/>air pressure at 120 <br/>parking brake engaged<br/>slide is in and have all green lights on HWH system in bay below<br/>air bags all seem to be at travel height <br/><br/>Level system light won't go off and annoying warning beep. Drove it last weekend for a short trip of about 2hrs, and beeped the whole time with level system still displaying.<br/><br/>I have been through...