My sensors have always worked accurately. However when my trailer was new (2003) I went under the trailer and while checking for problems, I found all the little brass nuts connecting wires to the tank sensors were only finger tight. I tightened and locked the nuts - this to me was an intermittent problem waiting to happen. Could this be responsible for some of the sensor problems? I also found the tank handles loose and ready to fall off and missed the main battery cable running from the battery to the inverter crimped between the frame and floor at the time of installation - it became apparent dramatically at 2000 miles, but that is another story.
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