I had a low air alarm on mine that wouldn't shut off. Underneath your coach there is a sending unit on each air tank, with wires on it. I unplugged them one at a time and it was the front tank sending unit that was bad. There are three air tanks on my coach.
Dennis & Marcie & Captain Hook The Jack Russell,aka PUP, 1998 HR Imperial 40 ft 2017 Equinox, 2010 Ram 1500 toads RVM59
A good day on the road means a restful night at the park!