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Old 12-17-2019, 11:36 AM   #1
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Bambi/Sport Fan Upgrade

Hey all. Want to upgrade the two Fantastic fans in my 2020 Bambi 22FB to get automatic temperature control. Looking at the 3350 or 7350 upgrade kits. Has anyone done this and is it a do it yourself thing or dealer required? I imagine it would be fairly easy to just do the inside part but I imagine Iíd need to climb up on the roof to install the rain sensor? Or would they have put one 1250 just in case? Thanks.
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Old 12-18-2019, 10:32 AM   #2
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Anyone?!
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Old 12-18-2019, 03:19 PM   #3
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I effectively did what was involved with a complete inner assembly upgrade because I took my fan guts completely out to run wiring for colored LED Lights on the awnings and I used the fan housing area to run the power leads.

Removal and replacement of the complete inner workings was not hard. It was bit awkward to reach everything. I did not have disassembly/assembly instructions which would have helped with a couple of the steps, so you'll have an advantage. The cutout in the aluminum is sharp, I used painters tape to cover it so I didn't cut myself.

The Rain Sensor is integral to the inner unit as the hood swings up the back half of the unit gets exposed. So the entire thing can be worked on from inside except perhaps the hood and hood hinge might be a little easier to get to outside.

I think the upgrade is worth it. Mine has both the temperature controls and the rain sensor. Both are very nice to have.
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Old 12-18-2019, 07:57 PM   #4
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yes , i did it in my as 22FB

easy to do
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Old 12-19-2019, 12:21 PM   #5
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Quote:
Originally Posted by waninae39 View Post
yes , i did it in my as 22FB

easy to do
Thanks. Helpful. Did you have to climb up on the roof to install the rain sensor?
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Old 12-19-2019, 12:29 PM   #6
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I did it on my 16 foot, all inside work, you just replace the guts from the new one to the old housing. I am tall so there is a little working over your head, took me about 1/2 to an hour, straight forward diy. I love the rain sensor , works in the middle of the night ! Good luck!
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Old 12-19-2019, 01:22 PM   #7
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its very simple. just replace the square frame from inside. nothing to change on the roof or outside
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Old 12-20-2019, 06:52 AM   #8
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Quote:
Originally Posted by waninae39 View Post
its very simple. just replace the square frame from inside. nothing to change on the roof or outside
Thanks. Donít you need to go up on the roof to install the rain sensor?
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Old 01-07-2020, 08:14 AM   #9
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Thanks. Donít you need to go up on the roof to install the rain sensor?

Anyone? Wouldnít I need to go up on the roof to install the rain sensor?
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Old 01-07-2020, 09:41 AM   #10
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No, The rain sensor is a little electronic board that sits inside the fan body (next to the fan) so you don't need to go outside or mess with the roof housing. When the fan cover/lid is open, it exposes the sensor. There are a few wires to connect with the replacement, but pretty straight forward. I did the whole project from inside the trailer. Let us know if you have any more questions, good luck ! Rick
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Old 01-07-2020, 10:18 AM   #11
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Bambi/Sport Fan Upgrade

Quote:
Originally Posted by skitger View Post
No, The rain sensor is a little electronic board that sits inside the fan body (next to the fan) so you don't need to go outside or mess with the roof housing. When the fan cover/lid is open, it exposes the sensor. There are a few wires to connect with the replacement, but pretty straight forward. I did the whole project from inside the trailer. Let us know if you have any more questions, good luck ! Rick
Thanks for the response. And thatís when using the upgrade kit? As that kit (model 7350) only includes the inside part of the fan, I thought you had to fish the sensor wire and sensor itself through a slot in the existing external part and then screw it in place (as per the instructions posted above). That doesnít require going on the roof?

Or are you talking about installing a complete new fan which I understand would have the sensor already installed on the side facing outside.
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Old 01-07-2020, 11:39 AM   #12
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(model 7350) kit has all items.
for the upgrade, all you need is the inside board

no need to remove the outside case or the exterior dome.

keep them inside and use them years later if the case or dome cracks or yellows
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Old 01-07-2020, 07:51 PM   #13
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Quote:
Originally Posted by waninae39 View Post
(model 7350) kit has all items.
for the upgrade, all you need is the inside board

no need to remove the outside case or the exterior dome.

keep them inside and use them years later if the case or dome cracks or yellows

Actually, Iíd buy the 7350 upgrade kit. It does not contain anything else than the inside board and the rain sensor hence my question. How do I install the sensor without going on the roof, which Iíd like to avoid.

https://www.dometic.com/en-ca/ca/pro...de-kit-_-52226
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Old 01-10-2020, 03:45 PM   #14
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I donít have my trailer with me to take a picture of the rain sensor, the fan unit unscrews from the housing, the sensor clips on to one of the support arms of the fan, attach wires and put fan unit back into housing from the inside. If anybody else has pics of more comments, please jump in too.
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Old 01-10-2020, 08:54 PM   #15
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Quote:
Originally Posted by skitger View Post
I donít have my trailer with me to take a picture of the rain sensor, the fan unit unscrews from the housing, the sensor clips on to one of the support arms of the fan, attach wires and put fan unit back into housing from the inside. If anybody else has pics of more comments, please jump in too.
Thanks. So what youíre saying is that I could unmount the fan assembly to gain access to the outside from the inside and screw the sensor in. Makes sense. If anybody has video or pictures of that, be awesome. My AS is in storage so I canít go inspect the current fan to understand. This is work Iím planning g for when winter is over in these parts!
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Old 08-24-2020, 02:29 PM   #16
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Quote:
Originally Posted by waninae39 View Post
(model 7350) kit has all items.
for the upgrade, all you need is the inside board

no need to remove the outside case or the exterior dome.

keep them inside and use them years later if the case or dome cracks or yellows
So I (finally) just did this upgrade. Swapped my two fans for the 7350. Love 'em. Really worth it. Thanks everybody for the above advice/help.

Just one question. How do you determine if your fan is on the air in or out mode? I get that you change it by pressing the button but there is no indication on the remote of the direction it's in to start with.
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Old 08-24-2020, 04:49 PM   #17
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Hold your hand in front of it and sense the air pressure? Use a piece of tissue or a store receipt nd see if it gets pulled against the screen?
With two fans you can set one to blow in, and the other out.
This provides good air exchange regardless of whether the windows are open or closed.
You never have to fuss with the direction once it’s set up.
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Old 08-24-2020, 05:32 PM   #18
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Quote:
Originally Posted by GetawA-S View Post
Hold your hand in front of it and sense the air pressure? Use a piece of tissue or a store receipt nd see if it gets pulled against the screen?
With two fans you can set one to blow in, and the other out.
This provides good air exchange regardless of whether the windows are open or closed.
You never have to fuss with the direction once itís set up.
That airflow plan would work great in the 2020.

Prior that the 22FB's only have one fantastic fan! But we also got a nice skylight which brightens things up.

The rain sensor would be a handy upgrade and a push pull fan would be good as well. I put 2 fantastic fans in my Camplite and they made a huge difference and were also the 2 direction units. The fan that came in my Sport seems like a step backwards.
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Old 08-24-2020, 08:33 PM   #19
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Bambi/Sport Fan Upgrade

Airstream dealer installed maxxAir II Vent Cover, open protected vent in any weather rain or shine. White housing doesnít cut down on daylight just softens it.
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Old 08-25-2020, 05:39 AM   #20
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Quote:
Originally Posted by GetawA-S View Post
Hold your hand in front of it and sense the air pressure? Use a piece of tissue or a store receipt nd see if it gets pulled against the screen?
With two fans you can set one to blow in, and the other out.
This provides good air exchange regardless of whether the windows are open or closed.
You never have to fuss with the direction once it’s set up.
Good tips. Tx.

I do think some kind of indicator of direction would have been nice. An LED on the remote or the housing itself.

Your airflow suggestion is exactly my plan. Set at the lowest speed, this could be a good, quieter alternative to the AC on a warn night.
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