I am looking for help. I have a 2004 Monaco Dynasty 40. There is a new air pump on it . When the engine is running the low air warning light comes on and it does not go off until the pressure is at 130psi in a minute or so the pressure lowers to about 115psi and then the beeper starts again for quite a while. I thouht maybe the low pressure switch but I canít find it. It is supposed to be on the front air tank .Any suggestions?