Anyone have a Tank Sensor Schematic?

[pconroy]

They've been good for several years. Today, the lights aren't reflecting reality. Fresh is full and shows empty. Grey is empty and shows 1/3rd. Black is empty and shows full. I'm thinking some wires are crosssed, unplugged, loose ground etc.


Anyone happen to have the schematic or manual around to help me debug?

[ARoamer]

I don't have a schematic, but I believe the sensors are fairly simple. For the fresh tank, check for a broken wire or open connection. On my 5th wheel when brand new, first ever fill up north I had a full fresh tank with no reading. Dealer said that the water needed iron in it for the gauge to work properly. BS or not, when I filled it at home it worked fine and has ever since, lots of rust in my water!

Guessing your other tank readings are from crud on the in tank sensors. Others have a recipe for tank cleaning additives, dish soap, borax and calgon if I remember correctly, I don't remember the exact formula, try a search or maybe someone will post it. Worth a try!

[pconroy]

Thanks! It was literally working fine the week before. It's been sitting in the storage lot. Something went kablooey.



I found an older troubleshooting manual, I may give that a shot!