Originally Posted by LSU Tiger
My black water tank sensors do not seem to work correctly. Can anyone tell me where they are located. Are they on the PS above the freshwater tank. Also is there a separate one for the electric toilet that will shut it down. I have that problem in my 36la. Also are the sensors on this unit inside the tank, or they external to the tank? Any help would be appreciated.
The sensors will be on the outside of the tank and will either be behind the wet bay panel or more likely on the passenger side behind the non opening bay. That one is normally attached with screws on each side and is a fairly easy removal. You said they don't work correctly but didn't describe the problem. If they are not reading empty when you empty the tanks, they are probably misplaced. They should be at 1/3, 2/3 and top of the tanks but quite often they are not. Ours were all the way at the bottom, around the 1/2 point and at the top. Below is a photo of how ours were with the red arrows showing where they should be. You can carefully pry them off and reposition them where they belong. The black and gray tank sensors are the black pads with the + sign on them. The yellow and red sensors are for the toilet and they are where they should be at 1/2 and full.