You are not logged in or registered. Please login or register to use the full functionality of this board...

Help w/ tanks not reading properly
Hello Everyone,

I’m having issue w my black/gray tank showing 100% full but it’s bone dry.  Also, I’m also not able to open or close the valves to open. I removed the connection to sensor on tank to make sure it was making good contact but that didn’t help. It too big consequence for both sensor and buttons to open close valves to all stop working together so makes me think something that controls both is giving me the issue. Any suggestion before calling Newell? I also filled the black/gray tanks 1/2 full and drove around thinking that may help but nothing changed.
Matt Whitaker

Coach 1242 & 606
Tesla Model X. Tesla Model 3. Mclaren 12C. Ferrari 458
I'll address the valves opening or not. There is a manual allen wrench to open and close the valves to dump on each valve. I have damaged both of my dump valves by holding the safety and dump button too long. Curb side and Drivers side dump valves. It may have stripped the worm drive, but non the less, they didn't work and I had to resort to the allen wrench. They are not hard to change out, just make sure the tank is completely drained and I also tipped the coach away (towards the Drivers side) to make sure no effluent came out while I worked on it.

These 2 items should be different and not connected, the best I can tell

As far as sensors, there is another thread here on this site that talks about a universal monitor that other have used, if the problem is with the sensor itself.

I'm not an electrician ( very armature) but I'm confused that your getting a full reading. Others will correct me, but that either means your getting power at the monitor when you shouldn't or your not getting power when you should. My black tank was reading correctly and now shows empty all the time.  I'll watch for information from the wiser Guru's here on what we should look into.
Dave, Karen and buddy. 
06 Newell #784
towing a 05' Featherlight enclosed  trailer for toys and tools, 
or a 18' Ford Raptor Big Grin w KTM 250 and MTB in the back

Carpe Diem. Have Fun
Tomorrow is not guaranteed.

My comments may be way off base since I have not laid eyes on your system. That caveat issued. If your sensors penetrate the tank, then there is a rather simple cause for the tank reading full.

If you have the system where your sensors penetrate the tank, the electronics sense a change in capacitance for the individual sensors. If the end of the sensor inside the tank becomes corroded or fouled, then the electronics “thinks” the sensor is in contact with liquid. The only solution that works for any period is to replace them. It’s not particularly hard.
Richard and Rhonda Entrekin
99 Newell, 512
Subaru Outback Toad
Inverness, FL (when we're home Cool )

Our waste tank was showing full all the time also. Upon investigation, we had a very small leak in our ice maker water line and the waste tank water sensor was getting wet. I fixed the leak, unplugged the RJ11 telephone wire from the sensor dried out both sensor and wire, then reconnected the cable and all was good. Hope this helps.
Joe & Darlene Roark
2007 Newell #1212
2014 Jeep Grand Cherokee Limited
A lot of the Foretravel guys that have had the factory sensors (which are different than Newell uses) go out have added the Seelevel system. Seems easy to install and very accurate. They attach to the outside of the plastic tank.
Forest & Cindy Olivier
1999 Foretravel 36' U320
former 1998 Newell 45' 2 slide #486 

former 1993 Newell 39' #337 
2011 Chevy Tahoe 

Thank y’all for the replies. I’ll see if perhaps I have water in the plug. I did switch the fresh and gray tank plugs and my fresh water was showing 100% full but I’ll also check for water. I did go ahead and order new sensor from Newell.
Matt Whitaker

Coach 1242 & 606
Tesla Model X. Tesla Model 3. Mclaren 12C. Ferrari 458
I just ordered a product called Unique Tank Sensor Cleaner from Amazon in hopes it may solve the problem. I'll let you know if it works.
In the meantime I'd still like to know where the sensor is located. Perhaps I can remove, clean, and replace it. As it is I'm watching water consumption and dumping the black tank before it is full. During the rinse and refill cycles to clean the tank I overfilled once and had water accumulate in the bay. Fortunately it was after several purges and was clear water but I found out why the plugs are in the floor.
Sandy and Bob McBratney
2007 Newell #1202  "Boomer"

Forum Jump:

Users browsing this thread: 1 Guest(s)