Tank Sensors not working

We have a 2018 Vilano - The sensors for the fresh water and grey water tanks are down or no talking with the panel. Does anyone know how to troubleshoot this system?

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I am not certain as to the setup on the 2018s but it should be similar to my 21 (with a few minor differences). The tank sensor inputs goes into the RSI-9 board that is attached to the G6 (the box with resettable fuses). It could be that those connections have an issue. On my unit I have to remove the G6 to be able to see that RSI-9 board. I will attach a picture of the pinout for the RSI-9 and a picture of where that was on my unit.

I would give Spyder Controls a call. They have really good customer service and will help you troubleshoot it. That can be reached at this number: 866.919.9092

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Thanks!

Chris Jones
303.495.0978

It could be that one or more of the sensors have detached from the side of the tank(s). I was under my rig to clear a blocked black tank valve and noticed that the 1/3-level sensor was detached from the gray tank and the full-level sensor was detached from the black tank. Not sure what adhesive to use to reattach the sensors to the tanks. You have to partially drop the plastic belly covering to see the sensors.


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I haven’t been brave enough to lower the cover just yet. We may have solved the readout issue when we rebooted the control system - it’s working better. Many thanks.

Chris Jones

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I have a 2019 Beacon 34RLB and my black and grey tank sensors always read 33% never zero, any clue why?

Hi @Onthelake22 -

Since Vanleigh uses surface mount sensors that don’t extend into the tanks, there isn’t any chance of those sensors getting blocked by “stuff” in the tank. I’m assuming you mean they never get below 33% when draining the tanks. Or are you saying they always read 33% regardless of whether they have been filled beyond that level?

On our 2020 Beacon, I have noticed that sometimes that final 33% level takes longer to get to zero. I think that might be due to these tanks maybe not having enough of a slant toward the drain to encourage draining. If I leave the valves open long enough both tanks will eventually drain completely and read zero.

Also a possibility that something in the tank could be inhibiting the draining, but would think that’s not the case since it’s happening in both grey and black. Have you tried maybe using the leveling jacks to induce a slight tilt towards the drain side to see if that helps drain the remaining contents?

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Thanks, after draining the black & grey tanks always read 33%, I’ve heard it’s possible for toilet paper to stick to the wall and give false reading. I also heard somewhere that if the factory placed the bottom sensors too low on the tank they will do that.

Definitely a possibility. I purchased one of these Dual Lens Wireless Endoscope a few years ago to aid in getting a better look at some of the more inaccessible areas. I was able to use it look between the walls and into the tanks without to much effort and for only $50 a thought it was a great tool to have.

You might be able to check to see if the tank sensors had come off if you go through where the gate valve manual override is located behind the wall in from storage compartment. I was able to stick my arm down there and use my phone’s camera to get a pic of the grey tank sensors. Easier than dropping the coroplast for quick look and see.

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Thanks I’ll have to look into getting one, I do a lot of work on the Rv and home, bonus I can start giving myself the big check up! LOL

Our factory sensors have always been questionable as to their accuracy. We just had a SeeLevel system installed and the readings on that which we trust(have used before) are way different that factory ones which are still there. So you maybe chasing ‘ghosts’.

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Hey Jon if you have interest in having your See Levels interface with your Spyder systems give Spyder a call and they can provide an update. They sent me a file for free that made for a quick update however somebody stated they charged a fee for the upgrade so uncertain if they would charge you or not.

We have a Seel Level monitor in the bathroom, wetbay and of course interfaced with the Spyder so visible there as well as our Eclipse module or the See Level app.

I had a post on parts of that process here: Tank level accuracy with See Level II

I’ve been talking with them already and I have the G12 which they haven’t developed the update for, they’re going to get it to me once available and it requires a firmware change which they send a tool for. Don’t know if there will be any cost.

I have the G12 and worked with Spyder to make the interface work. Not sure why they stated otherwise.
Send me an email address and I will forward the update they gave me.
The sensor’s worked with Spyder out of the box, the levels just flashed on the G12 display, correct levels, just flashed. That was corrected with the update.
I have a ‘23 41LKB, the Spyder configuration is the 290.

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They told a few folks I know that they hadn’t developed for the G6 although I was running it. They have really good customer service just must be a knowledge gap with some of their techs.