I have a typical ASME propane tank under my rig, and the gauge suddenly stopped working. It was 3/4 full at last check. It is an old needle gauge in the dash(1987). I push a button when the key is in the ignition and the needle jumps to current propane level. Starting today nothing happens!
What is the most common cause of this? Switch, gauge, or sending device?
Also, I replaced the regulator this March.