Go Back   iRV2 Forums > TRAVEL TRAILER, 5th WHEEL & TRUCK CAMPER FORUMS > Travel Trailer Discussion
Click Here to Login
Join iRV2 Today

Mission Statement: Supporting thoughtful exchange of knowledge, values and experience among RV enthusiasts.
  This discussion is proudly sponsored by:
Please support our sponsors and let them know you heard about their products on iRV2
Thread Tools Search this Thread Display Modes
Old 04-07-2016, 06:31 PM   #15
Junior Member
Join Date: Mar 2016
Location: SoMD
Posts: 6
Quick update: dropped it of at the dealer for a warranty repair.

Jestus is offline   Reply With Quote
Join the #1 RV Forum Today - It's Totally Free!

iRV2.com RV Community - Are you about to start a new improvement on your RV or need some help with some maintenance? Do you need advice on what products to buy? Or maybe you can give others some advice? No matter where you fit in you'll find that iRV2 is a great community to join. Best of all it's totally FREE!

You are currently viewing our boards as a guest so you have limited access to our community. Please take the time to register and you will gain a lot of great new features including; the ability to participate in discussions, network with other RV owners, see fewer ads, upload photographs, create an RV blog, send private messages and so much, much more!

Old 04-18-2016, 07:55 PM   #16
Junior Member
Join Date: Mar 2016
Location: SoMD
Posts: 6
Resolution: 1- Failed sensor caused erroneous reading. 2- Nothing found that would cause slow draining. Tank seems to be draining just fine.

Jestus is offline   Reply With Quote
Old 04-18-2016, 08:44 PM   #17
Junior Member
Kemosabe's Avatar
Join Date: Sep 2015
Location: Somewhere between Here and There
Posts: 15

Originally Posted by Jestus View Post
We recently bought 2016 SportTrek. It was used, but in great shape. We've had it out three times and we're having an issue with the grey tank indicator showing full when the tank is empty. I've also noticed that when the tank is full and I open the dump valve it seems to drain slowly.

We've tried filling 3/4 and adding a cup of Dawn dish soap. No help. Any other ideas?
My 04 Dolphin had had the black tank read 2/3 full since I bought it. Previous owner gave up on the problem.
I replaced the probes. While doing that I noticed on top of the tank that the 4 probe wires go into a "black tube full of silicone" and come out the other end with two wires into a plug, then into the harness. On a whim I unplugged and checked the board. Black is still 2/3. Which would indicate a short.
I left the black tank unplugged and went on a trip. Gray tank did not register at all and the black tank occasionally flickered full. One morning before leaving the park I had a blinding senior moment, I plugged the black tank back in and then the gray tank registered. Black tank still at 2/3. Some where I believe there is a short and am not able to find. I would like to have a set of wiring diagram that show the path from probe to meter. Maybe some overpaid laborer at the factory put a screw through the wire.

Last year I removed the water distribution plate to find the FW pump.
I moved the pump to a more accessible location. During the process I found a big rats nest. Cleaned out the nest and removed all remnant of mice / rodents.
My thought is that this pack rat was building a nest with the previous owner and in the process, chewed some insulation. Now I need to find the "snack bar " and repair. Which is why I want to find a book that has detailed wiring schematics for this model coach. And, naturally, National is gone and so are all their tech support documentation.

The point of this long winded saga is that in addition to blocked drain, and plugged up probes, you may have a short somewhere between probe and meter. It could not hurt to research that possibility.



I have not yet begun to procrastinate.
Kemosabe is offline   Reply With Quote


Currently Active Users Viewing This Thread: 1 (0 members and 1 guests)
Thread Tools Search this Thread
Search this Thread:

Advanced Search
Display Modes

Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off
Trackbacks are Off
Pingbacks are Off
Refbacks are Off

Similar Threads
Thread Thread Starter Forum Replies Last Post
Replacing my Grey Tank Empty Valve dropframe MH-General Discussions & Problems 8 07-06-2014 07:25 AM
Grey holdimg tank reading 1/4 when empty tom chelbana Newmar Owner's Forum 15 07-18-2012 08:15 AM
Black Tank Sensor shows Empty - even when full! DavidLyle Winnebago Industries Owner's Forum 8 02-17-2010 02:38 PM
Kitchen gray sensor always shows empty? MojaveJoe 5th Wheel Discussion 3 10-24-2008 08:38 PM
LP Sensor shows empty glenda1908 Winnebago Industries Owner's Forum 7 02-28-2006 04:38 AM

» Featured Campgrounds

Reviews provided by

Copyright 2002- Social Knowledge, LLC All Rights Reserved.

All times are GMT -6. The time now is 09:42 PM.

Powered by vBulletin® Version 3.8.8 Beta 1
Copyright ©2000 - 2018, vBulletin Solutions, Inc.