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Old 04-08-2021, 11:38 AM   #1
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See-Level Tank Monitors?

Hey all - Last weekend, we got our new to us coach out for a shakedown and I am working on my stuff that doesn't work list..... Folks here helped me fix the toilet! yay! Next on the list are the tank sensors.

We have the spyder electronic display panel that pretty much does it all... but none of the tanks gauges did anything all weekend - i filled about 3/4 of the fresh tank and used enough where i would have expected to see something on grey and black... nothing - no bars - on any of the tanks....

My search shows really no ideas on a fix and almost exclusively advice that says to just add the SeeLevel sensors and dont bother with the crappy ones installed at Tiffin.

So - first is this really the answer? Secondly, I can clearly see the fresh tank, but although i know generally where the black and grey are, i can't see them. I am wondering how hard of a job it would be to add the see level....

i can usually do pretty much any job if i have a youtube or some instructions, but i have not seem either yet specific enough to my phaeton to really give me the confidence to go for it....

Thanks in advance for any thoughts or advice!

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Old 04-08-2021, 01:02 PM   #2
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My opinion only.

If you have relatively easy access to all the tanks, I'd say replace with the SeeLevel system. Wiring is easy and you can use existing wires. Sensors are the closest to fool proof that you can get. Accuracy is consistent if installed properly.

I don't have experience with the monitors installed by Tiffin, but OEM from manufacturers tend to be easily broken and a PITA.
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Old 04-10-2021, 09:49 AM   #3
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I would start with a good cleaning of the tanks. It's possible that scum on the inside of the tanks is causing the problem. A bottle of Pine Power (not Pine Sol) with a half tank of water works well. You should also be able to run diagnostics on the Sealevel system. Check your manual.
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Old 04-10-2021, 10:08 AM   #4
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Installation of the sea level is fairly easy but if you want to first see if you can repair the factory installed sensors I suggest you remove the wet pay exterior panel on the passenger side just forward of the rear wheels and the sensors are all visible and easily accessible to check the wiring. I had similar issue with mine and found that the sensors were connected with a common wire that had separated from the home run to the spyder. Five minutes and a butt connector corrected the problem
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Old 04-12-2021, 07:38 PM   #5
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First you need to find out what type of sensors you have. Tiffin changed from the 3 pad sensor to a new one designed by Spyder some time around the 2018 or 2019 models. Does your display show 1/3, 2/3, Full or percentages? If you have the three pads attached to the tanks, then yes you can upgrade to the SeeLevel system. You will need the SeeLevel RVC709 NLP (No LP Gas) panel and the sensors. After that you will need a module from Spyder to reprogram the system to accept the percentage readings from the SeeLevel instead of the 1/3, 2/3, Full readings. It's not a complicated process but will cost approximately $500 for the monitor and the module. I changed mine out a couple of years ago and they work great.
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Old 04-12-2021, 09:58 PM   #6
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Whether you decide to install a SeeLevel system or not, your current tank monitors should work.

I would suggest calling Curtis Letniak at Spyder Controls (866) 919-9092.
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Old 04-14-2021, 09:47 PM   #7
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Just my personal take here, but I upgraded to a SeeLevel 709 system about 4 years ago, and have never regretted it.
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monitor, tank

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