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Thank you for starting this thread Trainman. The first and only time we used the AC was a couple of nights on our first outing with the Ollie last October. During that trip there was a popping noise which interrupted my sleep a lot. Initially thought it might be the refrigerator cycling, but did not try to track it down until now. After reading this thread I wondered if the source of the popping was the AC. So I started testing the AC first. After starting my AC it popped in less than ten minutes, then continued to pop about every ten minutes for a couple of hours. It also popped in a couple of minutes after shutting down the AC. As others suggested the simplest explanation appeared to be the diffuser was not able to expand or contract smoothly with changes in temperature. Flexing the edges of the diffuser by pressing different areas produced a lot of popping and crackling and if felt like the edge was grabbing the hull. The diffuser is held in place by eight wood screws and two sheet metal screws. I started backing out each screw a little at a time to see if it would change anything. The pops and crackles were reduced with each iteration. I stopped when a sheet of letter paper could easily slide under all edges. The diffuser is forced to follow the contour of the ceiling so the corners were the last to separate. Immediately after backing out the screws I ran the AC for two hours without popping. Although encouraging I ran the AC a few more hours over a couple of days and still no popping. Now I'm looking at ways the screws can be snugged down without forcing the edges against the ceiling, leaving a thin gap all the way around. The largest gaps occur in the front and back at the center. The back gap is the largest at 2.7mm (measured using two dimes) at the center. I don't think these gaps will cause any issues but maybe a soft gasket could be used to seal these areas. Hopefully others will help confirm whether or not these observations help resolve this issue in their trailers. Suggestions for a permanent fix would also be appreciated. This diagram is from Dometic AC 64767 instructions.

You guys are great! From a first time user I was super impressed with the breadth of knowledge/experience and timelines of the responses. I sure do know where to go for expert advice!! I ended up installing the shunt and a new bus bar inside the battery compartment on the left hand side. I used a small piece of pvc molding (thank you Home Depot) and attached it to the battery compartment wall with 3M adhesive and attached the shunt and bus to it. I installed the gauge just below the pantry counter on the right hand side and ran the data cable and a power cable through the battery compartment using grommets to eliminate chaffing. Reinstalling the batteries and hooking the cables to the battery was a piece of cake. All works great! Special thanks to Andrew for the phone calls...and advice!

Here’s one that is stored next to mine. Inside has been nicely updated.

Has anyone experienced this? I just noticed that a couple of drawers were rough to open and it looks like the bearings on all my drawers are rusting - some pretty badly. Like, really badly. I'm not sure if there's a solution to this other than new slides. I guess I could take them out and soak them, but I'm sure they'd quickly rust up again. I have to guess it's just from humidity since there's no sign of water intrusion anywhere. Possible that I have a hidden leak between the hulls that's keeping it overly humid in there. I've got a dehumidifier, but I haven't been using it since it requires the trailer to be plugged in 24/7. I guess I've got a new project. I've sent a note to Oliver to ask about replacement. Blum has a lifetime warranty on everything they make, so hopefully they'll swap out the parts for me for free.

They have a you tube video on this unit, very interesting. It was one of the most advanced rvs of its time.

Well not that this doesn't happen,, probably normal, let's face it, it's fiberglass and glued together. We were camping last weekend and for some reason the trailer up by the A/C area in the roof popped all night long. Just a sharp pop, crackle, whatever, this has happened before and I just figured settling of the fiberglass construction, but there was more popping then usual. I thought that maybe I didn't put enough tension on the rear jacks as I did notice that the trailer was not as stable as other times, but too laze to go out and give the jacks a little bump down. Just wondered if you have ever experienced this before, I don't see where you could do much about it, but adjusting the stress on the trailer with the jacks is probably the only thing you could do. trainman

We ordered an Elite II in June.. pick up is in November.. so we can’t wait for fall to get here..Sold our faithful old Casita today, strange watching her head down the road without us, but it was fun helping the new owners get acquainted with their new camper, having driven over 1500 miles just about straight through to get here. They have never had a camper, never been in a Casita.. they were super excited to say the least.. As I watched, I kept thinking about how exciting it will be when it’s our turn to load up all kinds of gear in the truck, head to Tennessee to pick up our new camper, then go hide at Davy Crockett St Park for a couple days trying to figure it all out...Four more months to go..

There was one in the parking lot at the RV museum in Elkhart, Indiana last September, as well one inside on display. They sure were ahead of their time. Mossey

Nice job tracking down the problem. I would think that a few strategically placed felt pads on the AC diffuser would solve the popping.

Just to be sure we're talking about the same part, it's the piece on the bottom right here, correct? Going by the parts diagram, I think the only way you can get that part is with the flipper kit. At least it isn't given a separate part number. 21a is the flipper kit, and it includes all the parts in the photo above. But the flipper kit is less than $8, so you might as well get it and then you'll have the flipper for when it breaks.

I haven't actually done one, but it looks very very easy. You just take off the little orange retainer at the end that prevents the two arm pieces from sliding apart, then slide out the inner piece, remove a pin that holds the clip in place, replace the clip and reverse the process. The kit comes with the clip, a spare spring and pin in case you lose one of them, and a replacement orange retainer piece so that you don't have to worry about destroying the existing one getting it off. It also comes with two rivets, but it looks to me like you only need those if you plan to take the entire arm off to work on it - I think it would be a cinch to just work on it in place.

Made me look🙄, haven’t seen anything like that thankfully. This is the dehumidifier I keep in the trailer and it only needs electricity to dry out the beads inside. When the beads turn green they are wet and need a drying cycle. Mossey

We know the "critical" choices oh so well. Just get everything? The solar impresses me every time I turn a light on. We have not had it plugged in, at home, since being it home in 2017. Not have we had a need too, and we use it there. We put our own decal on front in a CG in Alabama. Brought it with us from Bannana Banners. We found when gathering "stuff" for the Oliver that not to use a spare bedroom, there is more room in a garage , lol

I making a list of those on this forum that carry replacement parts, I just need to know who you are and where you will be camping. 😀 trainman

I don't think anything is loose, but until the cover comes off the A/C unit and I inspect it, who knows. The outside temp was around 95 degrees, but even night time with lower temps did not make a difference on the popping sounds, or if the A/C was on, or off. Now these sounds are random, so there is no set pattern when the will happen. Movement in the trailer is not a factor either, as this happen when we are in bed and not moving around in the trailer. I still think it was that the rear jacks were not under enough pressure and their adjustment may have been more on one side vs. the other. If it wasn't so hot outside I would go out an take a nap in the trailer as see if it will happen, yes I do have power to the trailer at home, but just haven't wanted to fool with it at this time, I have to work on my garden railroad as it is more fun then messing with the trailer. I still think it is stress related in the fiberglass, after owing several Corvettes and being with Chevrolet for 35 plus years, I have had owner of Vettes say they get a popping sound from time to time. Plus I have owned many boats of all types of fiberglass and they may have popped to, but just couldn't hear them when under power on the water. I will let you know if something comes up, but I don't expect to be doing too much camping during this Texas heat and everything else that is going on. Maybe we can set around at the Oliver Rally (if it happens) and have a beer and wine "popping party". trainman

OK - we got the Ollie, then we got a couple of trips in the Ollie under our belts, then we moved. But, now we can get out there and REALLY enjoy all that the Oliver has to offer. Life's too short - get to it and enjoy the heck out of it (both life and the Oliver). Happy travels. Bill

Jerry and Kathy, Congrats on your new Oliver and we wish you many happy adventures ahead! David & Kathy

Jerry and Kathy, welcome! Glad you’ve had some time in your new Oliver. Maybe we’ll see you at the rally? Mike

Welcome home to Florida, and welcome to the forum! Sherry Tampa Bay