Air8 Reprogram for Continuous Fan

Sharon_is_SAM · March 2024

Try here: https://tab-rv.vanillacommunity.com/discussion/14246/air-conditioning#latest

EasternJL · March 2024

Thanks for that. What I'm looking for the admin manual for settings that require the special password (8699). There are numerous settings there that aren't accessible to normal users, but without some instructions, it's kind of a mine field.

stepheng · June 2024

Has anyone figured out how to slow the fan down? It’s still really loud at low speed. Is the fan motor speed digitally controlled or does it have multiple taps? Anyone thought about adding a PWM controller to slow it down?

CharlieB · June 2024

EasternJL said:

Thanks for that. What I'm looking for the admin manual for settings that require the special password (8699). There are numerous settings there that aren't accessible to normal users, but without some instructions, it's kind of a mine field.

@EasternJL : I contacted Josh Elwell at Elwell Corp yesterday and asked him if he could send me a list of the codes for the functions that can be accessed through the programming interface on the Air8. Here's his response:

Hi Charlie,

Attached is an image that has the other settings that are changeable in the air8 menu.

We typically recommend not changing the other settings, but there are obvious use cases if you have something specific in mind.

Thank you,

Josh Elwell

I will include the image he sent below.

I also asked Josh if it was OK to share his response with this forum and he said "Absolutely! Feel free to share!"

I hope this is helpful

Image: https://us.v-cdn.net/5021717/uploads/editor/dk/rb0y06hd0ton.png

mx4789 · October 2025

Has anyone actually reduced the air blower speed?

I am assuming the above chart is referencing the default start up settings and not a way to change the speed of a particular setting...

Sledhead1 · October 2025

Digging this thread up, I just got a new 24 320 CSS. The air 8 on fan on low is like a leaf blower. With all 3 vents open. On high it's like a air compressor blow gun. It's so noisy and windy. Is there any way to slow down the fan speed? I'm impressed at how much air this thing Can move. I just dont think it's needed. I'd like something more reasonable like what a car vent puts out. Is it possible to adjust the fan speed or is there something wrong with mine.

CharlieB · October 2025

mx4789 said:

Has anyone actually reduced the air blower speed?
I am assuming the above chart is referencing the default start up settings and not a way to change the speed of a particular setting...

@mx4789 & @Sledhead1 - As far as I know, MX4789 is right. Setting #9 in the chart above allows you to change the display on the Air8 control panel so that it shows either 1 speed or 3 speeds - Low, Mid, and High. But the speed of the fan at each of those 3 speeds can't be changed.

I agree that it's noisy at all 3 speeds. But if you accidentally set it to just 1 speed - as I did while changing the setting for the continuous fan - it's nice to to be able to set it back to 3 speeds and reduce the noise at least a little by setting it to Low.

mx4789 · October 2025

FYI, I sent an email to Elwell Corp regarding the fan speed last weekend. I have not heard back from them. Granted it was to their generic "info @" email address, so I'm not holding my breath.

anubis71 · October 2025

I find that the AC is much quieter with the vents popped out. I also made a new steerable vent that might be quieter than the standard one which I will use for the top outlet to direct airflow. It's still a work in progress if anyone wants to test it.

https://www.thingiverse.com/thing:7187281/files

mx4789 · November 2025

I was thinking about some kind of box with an angle built in for underneath the trailer to at least direct the air flow & sound. I downloaded a decibel meter app just to see how loud it is both inside and outside. Of course while camping this weekend the temps are in the 50’s & 60’s so I am not too motivated to fiddle with the AC, lol. Instead it’s been more ‘get familiar with the Alde system’ weekend.

mx4789 · November 2025

BTW, great work on the vent!

anubis71 · November 2025

I believe such a diverter for the underside AC exhaust has been done before by someone, but I don't remember where. I could certainly try to make my own 3D printed version if people want it. I haven't looked into it.

Sharon_is_SAM · November 2025

Here is the Air8 exhaust diverter from RFuss.
https://tab-rv.vanillacommunity.com/discussion/19597/simple-performance-boost-for-air8-air-conditioner

mx4789 · November 2025

Thanks for hunting down that link, I knew I'd seen it before but at the time it wasn't on my mind.

FYI, I sent Elwell another email (via their website this time) and am hoping for a response, even if it's negative.

ClemOnTheTrail · January 11

anubis71 said:

I believe such a diverter for the underside AC exhaust has been done before by someone, but I don't remember where. I could certainly try to make my own 3D printed version if people want it. I haven't looked into it.

This would be great! I am interested!!

mx4789 · January 11

It seems my 2025 320 actually does have an external diverter of sorts.

Image: https://us.v-cdn.net/5021717/uploads/editor/0g/c90457oxe4ox.jpeg

I used the AC on my first camping trip in the Tab back in October and I haven’t had to use it since, been using the Alde instead. I downloaded a decibel meter app because I want to know how loud the AC is both inside and outside. It’s mostly the outside I am concerned with since the state parks I camp at often have people camping in tents mixed in with the RV spots. I just don’t want to be “that guy”. I am curious if any Tab owners have had any comment on the outside noise..

rfuss928 · January 11

mx4789 said:

It seems my 2025 320 actually does have an external diverter of sorts.

That is the inlet vent for the Air8 condenser and the louvers are to deflect road spray and debris from entering. The outlet is a ~5inch square opening on the inner side of the frame through the black Plasticore.

mx4789 · January 11

>>that is the inlet vent for the Air8 condenser and the louvers are to deflect road spray and debris from entering. The outlet is a ~5inch square opening on the inner side of the frame through the black Plasticore.

Thanks for the correction!

anubis71 · April 19

I created a new thread for the quiet vent I made. https://tab-rv.vanillacommunity.com/discussion/20332/quieter-tab-320-vent/p1?new=1

Air8 Reprogram for Continuous Fan

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