[justrollin]

I have a fresh water tank monitor and a waste water tank monitor both read 1/4 full all the time, full or empty. Ive looked at the tank side of both and they are hooked up. Anyone had problems with this and some insight on what I might do to get them reading correctly? The boat is a 1998 3100 open . :argh:

[juanete]

Probably the float inside the tank is not working anymore and gets stuck. I have the same situation on the holding tank of my 31. I am in the process of changing the float and its electrical component.

[Chris Burkard]

The level sensors are know for failure (especially the waste). Your only solution is to replace the sensors or live without the level monitors. Sometimes you get a year out of the sensors, sometimes a few years. It just depends on use or lack thereof.

[justrollin]

Thank you I will look at that and see if we can get to it with ease and replace it.

[UpTime]

I know this an old post, but my water and waste tanks were both reading full even when they were not. I found the tanks and senders, looked up the manufacturer's web site and found instructions for recalibrating the senders. Fortunately, it worked for me.

I have a 2005 Tiara 3800. The tank level system is made by Xintex, model LLM-2. The hard part was removing the senders, especially the one on the waste tank. Once removed (and cleaned up) the calibration involved applying 12-volts to the red and black wires with the white and green wires connected for 30 seconds while the sender sees empty condition (~1.5 in. Of water at the bottom of the tube). The full condition is calibrated by disconnecting the white and green wires for 30 seconds while the tube sees a full condition. Once calibrated the 12-volt supply is disconnected and the senders can be reinstalled. It worked for me!

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