RobS

I know this is an old thread but it popped up in my search when I was looking for something else. Your readings are off because the stick on tank sensors are positioned wrong. If you are very careful you might be able to very gently remove them and reposition but to be honest I haven't had any luck doing that, I always break them. New ones are around $70 (at least today). Positioned correctly they are very accurate. These are very expensive systems even though the Control Panel looks like cheap RV stuff. It's a relatively quick fix to be able to get a good reading on your tank level. Good Luck Rob