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Old 09-01-2016, 03:47 PM   #1
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Default Rv tank level monitor panel

I have a 2001 Roadtrek 190opular. The monitor gauges for the fresh water, black tank, and grey water are not working. The Propane, battery, water heater all seem okay. I would like some advise as what could be the problem. I have checked the the wires at the back of the panel and all connections appear to be OK. How do I go about checking out the panel? I have found units for replacement on the net but don't want to replace if it is a matter of a ground wire or some other simple fix. I can get to the wires a t the back of the panel but I don't know how the face attaches to the wall.
Any help would be greatly appreciated.

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Old 09-01-2016, 04:48 PM   #2
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Even if you fix any broken connections, they still will not read accurately much of the time. Just a reality of the RV life.
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Old 09-16-2016, 03:06 PM   #3
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i keep an old broomstick handy to get an accurate check of my tank levels...
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Old 09-16-2016, 03:24 PM   #4
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i keep an old broomstick handy to get an accurate check of my tank levels...

just don't double dip.



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Old 09-16-2016, 03:28 PM   #5
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A lot of us have just upgraded to the Seelevel monitor system that uses external sensors. Not too bad to install, but not really easy either, but can use the existing wiring which really helps. They work well, and the in tank ones never work very well for long.
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Old 09-16-2016, 03:51 PM   #6
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A lot of us have just upgraded to the Seelevel monitor system that uses external sensors. Not too bad to install, but not really easy either, but can use the existing wiring which really helps. They work well, and the in tank ones never work very well for long.
The Seelevel sensors do indeed appear to be robust. However, I have been having trouble with the display unit being flakey. I often have to tap on the display in order for all the LED segments to come on. Anybody else see this? Any fix?
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Old 09-16-2016, 03:55 PM   #7
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The Seelevel sensors do indeed appear to be robust. However, I have been having trouble with the display unit being flakey. I often have to tap on the display in order for all the LED segments to come on. Anybody else see this? Any fix?
What LED segments are referring to, the ones that create the reading % numbers? That sounds like a loose wire or bad solder joint. Ours has not shown any tendency to do that.
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Old 09-16-2016, 04:07 PM   #8
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What LED segments are referring to, the ones that create the reading % numbers? That sounds like a loose wire or bad solder joint. Ours has not shown any tendency to do that.
Yes, several segments of the numeric percentage display randomly fail to light. Enough so such that it can't be read. Tapping it with a finger tends to fix it. Yeah, must be a bad internal connection. The internals are not easy to get at, unfortunately.
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Old 09-16-2016, 09:47 PM   #9
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Advanced RV uses barometric sensors. They work very well especially with tanks that are not precisely rectangular. They are able to install custom designed odd shaped tanks to gain more gallon capacity in available space as a result. About the only time they go haywire I've noticed is when you come down off a mountain top but that is only for a short time.
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Old 09-16-2016, 11:26 PM   #10
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Advanced RV uses barometric sensors. They work very well especially with tanks that are not precisely rectangular. They are able to install custom designed odd shaped tanks to gain more gallon capacity in available space as a result. About the only time they go haywire I've noticed is when you come down off a mountain top but that is only for a short time.
Since you seem to value facts, I would say that they are using a pressure sensor in the bottom of the tank that measures the total of the barometric pressure acting on the surface of the liquid in the tank plus the added pressure due to the weight of the liquid. If it has a problem with rapid changes in barometric pressure in the mountains then it must at some point use some logic to recalibrate itself for the barometric pressure change and restore accurate readings of the level of liquid in the tank. Not sure how it handles the different densities of the water, grey water, and black water but there may not be much difference. I am not inclined to measure the differences myself but it would be a good experiment for an inquisitive student to do for extra credit.
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