Thetford TECMA toilet

senior-cit wrote:
I own a coach with the TECMA electric flush toilet with the water saver. Recently the red sensor indicating a full tank came on. The tank has been emptied, but the light stays on. I disconnected the High limit sensoe behind toilet and light still is on. Can't flush with this red light on. Has anyone had this same problem and any suggestions?

There are 2 glued on tank sensors on the outside of Black tank. They may have come loose. That is why you get the full reading. You also may need to flush and rinse the tank 2 or 3 times to remove any debris on the inside walls of the tank to keep the sensors from reading a false level. Doug