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Old 06-28-2015, 10:19 AM   #1
Join Date: May 2009
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Water tank sensors

I know lots of times when the sensors are fouled they will read full when they're not , although mine are always reading empty regardless of how full they are .
Why would that be?

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Old 06-28-2015, 10:35 AM   #2
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It could be that the wires to the sensors aren't in place. Look at the wires attached to the sensors as a first step. If all the sensors read zero, check power connections to the display panel.


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Old 06-28-2015, 12:46 PM   #3
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Truth be told, ever since my first RV (Cub Camper) and the 4 RV/s that have followed, I don't pay much attention to those gizmo's. The only ones that have worked consistently is the fresh water one. Other than checking the wires, I don't worry about it a lot.
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Old 06-28-2015, 02:02 PM   #4
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Mine have always worked and i kind of depended on them so now that they don't work i miss them!
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Old 06-28-2015, 04:03 PM   #5
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Mine always work but get fouled often so not much value. The real indicator is when the lowest drain begins to back up. For our black tank it is the outdoor kitchen sink. For the gray its the tub drain. We generally know that the gray will hold 5-6 showers plus dishes, that is the most accurate guage for us.
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Old 06-28-2015, 04:18 PM   #6
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Yea, I don't put a ton of faith in them either... They're basis resistance based and not that accurate (IMHO). It's good to try and clean 'em, but I've seen less-than-perfect results on new RVs.

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tank, water

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