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Old 01-08-2020, 02:24 PM   #1
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Post ARIA storage floor boards

Have a '17 3901 Aria.

Issue is the floor boards for the storage compartments are deteriorating at a very alarming rate.

They are all sagging and the floor under the water tank has detached.

Obviously from water and the driving in wet conditions has made all the flooring weak.

Has anyone done any repair and what is the suggestion.

Just a very poor use of a material that shouldn't be in this application from THOR.
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Old 01-08-2020, 03:56 PM   #2
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while you're certainly past your normal warranty, I would still call/email Thor Warranty Center and tell them that this has been happening since day one and they need to replace the flooring - they did for us, and we were slightly out of the warranty period.
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Old 01-21-2020, 12:25 PM   #3
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We are experiencing the same deterioration in certain spots on the basement storage floors. We plan to replace them in the spring. Not sure the cost and time to travel to Indiana is worth having Thor fix the problem with the same materials. The problem will likely occur again in a few years. Am considering replacing the plywood with a light weight composite board as it will be more suitable for wet conditions. Currently considering Coosa Composite Board - Bluewater 26. I will update if we decide to go this route.
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Old 01-21-2020, 12:32 PM   #4
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Seems there was a recall recently on this issue with some of the bigger models. Your coach isn't so old that Thor may consider helping you. May not be a full-on warranty claim but they might offer some assistance...at least in the form of advice or discounted labor. This will be a big job...I'd seriously consider negotiating help from Thor and take it to the factory Service Center for the work either way. They've had a lot of experience repairing this specific issue and they know it exist. The labor rate is only $100 per hour and they don't have to stand around for days scratching their heads (on the clock) wondering how it was put together. Do it once, do it right. Seems in a previous post by another owner, they replaced all the material and have redesigned the sealing process. The Wakarusa Service Center is excellent. Their statement..."we didn't build it but we can certainly fix it".
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Old 01-21-2020, 12:58 PM   #5
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Follow up[

Thor is evaluating at this moment.

My fingers are crossed and hoping for a good resolution.

The floor board below the fresh water tank has completely deteriorated and is hanging below the coach.

An embarrassing site to say the least and another issue is the install of the slider trays was attached directly to the floor boards with no support.

I would hope the install people would have had some common sense about this issue also.

Will keep all updated.

Thanks for your replies.
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Old 01-21-2020, 01:10 PM   #6
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Use the power of the past...they know it's an issue so make sure you remind them. And...be nice! They get their butts reamed enough by thousands (many unjustified)...when someone nice comes along, they love you and jump through hoops for you.
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Old 01-21-2020, 01:20 PM   #7
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Quote:
Originally Posted by The Gritz Carlton View Post
Use the power of the past...they know it's an issue so make sure you remind them. And...be nice! They get their butts reamed enough by thousands (many unjustified)...when someone nice comes along, they love you and jump through hoops for you.
aka you attract more bees with honey than you do with vinegar
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Old 01-22-2020, 12:51 AM   #8
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Quote:
Originally Posted by 330jetjoc View Post
Have a '17 3901 Aria.

Issue is the floor boards for the storage compartments are deteriorating at a very alarming rate.

They are all sagging and the floor under the water tank has detached.

Obviously from water and the driving in wet conditions has made all the flooring weak.

Has anyone done any repair and what is the suggestion.

Just a very poor use of a material that shouldn't be in this application from THOR.
I have a '17 3901 as well...was wondering if you could post pics of the issue so I can compare to mine. I don't have boards hanging down or 'sagging' but I have had moisture issues in the basement. Curious what to look for.
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Old 01-24-2020, 03:41 AM   #9
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Floors

Hope these pix might be of assistance.

I also have the slider trays that are mounted to the wooden floor.
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Old 01-24-2020, 03:47 AM   #10
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Originally Posted by 330jetjoc View Post
Hope these pix might be of assistance.

I also have the slider trays that are mounted to the wooden floor.
Oh my...sorry to see that happened. I will inspect mine carefully and report back what I find. I didn't realize that was such a risk. I also have the slider trays and they are packed with several hundred pounds of materials. Now I am really concerned.

Thanks,
Hunter
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Old 01-24-2020, 01:27 PM   #11
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Smile Floor boards

I installed some angle iron between the supports of the storage undercarriage
Seems. To have helped and made my brain not think so much about the eventual outcome.

I suggest using aluminum angle bar can get at Home Depot and attached with sheet metal screws.
I attached the slide roller fittings with spacers and it has definitely improved the structure.

Hope you can see in the picture.

Still awaiting THOR’s response to the deterioration and delamination of the floors.

And I have been the nicest of customer hoping to get a positive response.Click image for larger version

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Old 01-24-2020, 01:42 PM   #12
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I also have used aluminum angle to support the wood structure. I used stainless nuts and bolts to the framework. I have a few compartments that seem to be holding up, and a couple that have sagged quite badly.
Mike
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Old 01-26-2020, 10:28 PM   #13
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Thank you for the info and pics. I went ahead a took a couple pics under my 2017 Thor Aria 3901. Looks like the dry Arizona climate and indoor storage are allowing my coach basement floors to hold up ok so far...but I think I am going to proactive install some cross-member bars. A buddy of mine is a skilled welder...may solicit his assistance vs. bolt-ins.

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Old 01-27-2020, 12:50 AM   #14
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I have a 2019 Thor Aria 3601. Will this be a problem with mine? Freightliner had to replace our a/c compressor and they said that everything was covered up underneath. We store ours indoors. We are going camping for Valentine's Day at Ocean Lakes in Myrtle Beach, SC and my husband is going to check on our storage compartments prior to leaving. Really appreciate this Forum and all of your help, guidance and suggestions....
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Old 01-27-2020, 03:15 AM   #15
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Wow! Thank you for sharing. I also have a 2019 Aria 3901 and wonder if we can expect the same problem. Sounds like this is a major issue and Thor should take of it.
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Old 01-27-2020, 11:49 AM   #16
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I would be pro-active and contact Thor before an issue started...especially if you are still under warranty. No one can answer if this "may" happen to you. It's a known issue and there is a resolution. It very well may be Thor will cover modifications to the seal areas...before any damage may occur. If its stored indoors and you're not driving it...I would be the fort you'll have no issues. If you get it out and drive it in the rain...highly probable you "may" have issues, if your unit was constructed in the same manner as the owners with issues. Pro-Active is the path of least resistance.
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Old 01-27-2020, 12:56 PM   #17
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Follow up[

Quote:
Originally Posted by aznytfury View Post
Thank you for the info and pics. I went ahead a took a couple pics under my 2017 Thor Aria 3901. Looks like the dry Arizona climate and indoor storage are allowing my coach basement floors to hold up ok so far...but I think I am going to proactive install some cross-member bars. A buddy of mine is a skilled welder...may solicit his assistance vs. bolt-ins.

Pics:

Attachment 22354

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Attachment 22357
I see you also have the slider trays attached to thee wooden (particle) boards.

I was very concerned and that is why I installed the cross-members.

Remember that steel will have long term concerns vs aluminum and the weld points will be and issue.
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Old 01-28-2020, 02:38 AM   #18
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Quote:
Originally Posted by 330jetjoc View Post
I see you also have the slider trays attached to thee wooden (particle) boards.

I was very concerned and that is why I installed the cross-members.

Remember that steel will have long term concerns vs aluminum and the weld points will be and issue.
Yea... I think I am going to do the cross-members...for both reasons (sagging and support for the trays).
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