Thank you! Your comment has been submitted successfully. You should be able to view your question/comment here within a few days.
Error submitting comment. Please try again momentarily.
Upgrade your RV's AC with this unit from Advent Air for ducted or non-ducted systems. New R32 refrigerant meets 2025 EPA regulations. Not backwards compatible with any AC systems from 2024 and earlier.
Features:
Specs:
Notes:
Because your RV is likely already prepped and pre-wired for an AC unit, installation is simple. Most AC units are designed to fit an opening that measures 14-1/4" x 14-1/4". Depending on your roof setup, you may need to do minimal alterations. If the opening is larger than 14-3/8" x 14-3/8", you will need to install spacers between the sides of the unit and the opening's edges. If the opening is smaller than 14-1/8" x 14-1/8", you will need to enlarge the hole to fit the unit snugly inside the opening.
On the bottom of the AC, there's a thick, collapsible gasket with 6 noise-reducing foam pads. This provides support between the RV roof and AC and seals the opening to prevent water and outside air from leaking in. Because of this, the use of fresh sealant isn't needed. Once installed, the hard plastic cover on the AC can easily be removed for maintenance and cleaning.
In order to fully complete installation, this AC needs to be paired with a 2025 or newer Advent Air air distribution box and thermostat.
Additional accessories can be purchased separately to improve the performance of your Advent Air AC unit. The start capacitor (ACMSCKIT) improves the performance of your AC by using stored energy to jumpstart it. And the electric heat strip (ADV34QR) removes the chill on cold or frosty mornings in your RV, ensuring you stay comfortable. Please note that the heat strip will only work on Advent Air AC units.
2-Year limited warranty covers defective units when installed correctly on approved applications. The warranty does not cover units installed incorrectly. To ensure air conditioner is installed correctly, please see the questionnaire pdf below. A filled-out questionnaire is required for warranty coverage.
If you are not comfortable using a voltmeter (or removing the charge from the start capacitor), you'll want to make a service appointment with your local RV dealer to verify the installation. Print the pdfs below (warranty- questionnaire, warranty dealer information) and take them along with the RV to your local dealer. ASA does compensate dealers for warranty work as outlined in the dealer information pdf. You may be charged by the dealer for time spent investigating the installation.
Customer Satisfaction Score:
90% were satisfied with this product
10% of customers were not satisfied
Ratings & Reviews
Great experience. 2 day shipping right on time!!
Easy install thanks to your videos specially the wiring!!!
Thank you for the easy return to get me the correct one which I ordered the wrong one. Thanks to Amy!!!
Fast Shipping thank you
You all did great...the price for everything was affordable and I liked the free shipping. This AC unit blows the cooler air a lot better than the original one.
Fast shipping! I installed this unit for a customer and they are very pleased. It started pulling humidity out quickly and temperature started to go down at a decent rate.
Works great! My only issue is the knobs won't fit? They fall off i guess they have to be glued?
Works great better then old Domic ever worked. The only problem is had was with the 6 pin connection the old one had rounded ends new one had flat ends made it hard to get plug in.but I am very happy with the unit cools great.
The only problem was that the Connection was wrong. It should’ve been male instead of female. It would be nice to maybe put a gender bender connector in the box. Otherwise everything worked perfect. Just a suggestion thank you.
The unit has never worked right. It doesn't ever shut off. I have always had my A/C set on auto so when it reaches too hot, it will come on and when it cools to a set temperature, it cuts the unit off. This unit will not do it. I have to go and turn the breaker on to turn the unit on and then go and turn the breaker off to shut the unit off otherwise it will run none stop.
The unit was supposed to be plug and play compatible with the dometic controller. That is why the 4 star review. The plug had female pins instead of male pins. Other than that the unit performed as expected.
Easy to install, you just need a male to male 6 pin converter to attach to old Dometic controllers.
Other than that, excellent.
And as a bonus, it's quieter than the old Dometic I had.
Bought an Advent for a direct replacement for my living room a/c last year. Bedroom a/c went out this year. Have had great success with the replacement from last year. Easy plug and play installation.
It installed in the same place as the old Colman and installed fairly easy. However the “direct” replacement as advertised is not entirely true. The air delivery box will not work. The control and thermostat will not work so I ordered more parts from here and I’m still waiting on it to arrive to see if I wasted my $800 or not. So far not real good feeling about it.
Easy to install but need a new thermostat setup to be compatible with r32 freon
Well I already told you the unit was damaged in transit, I did repair it by myself, it was dented in next to the compressor area, subframe metal was dented, plus the units wiring harness was identical to the receiver end of the existing on the rv wiring box, in other words, the prongs weren't received into each other, since they were the same, so even tho I may have ruined my warranty by cutting the end off the unit and wire nutting the old one in its place,but it works, could just fine, the old unit was 19 years old, everything is still the same on the unit, it was light weight, and cools just fine
This is my fourth Advent unit I have purchased recently. The units themselves function well and customers are very happy but, on every unit, the six pin connector would not fully engage with the existing control box. Could not adjust the pins in the connector so is was forced to rewire unit using the old unit harness. I am considering going in another direction in the future.
As I stated after my last purchase of a Advent AC. The six pin plug at the end of the umbilical cord does not engage with existing control boxes force a rewire of the cord using the old 6 pin connector. I'm thinking of using another brand and distributor in the future
If you really have NO experience with rooftop units, maybe you should go with a complete kit (including the control box/thermostat). If you have "some idea" of what you are doing, you can figure it out. This unit comes with a six pin plug that feeds the fan and compressor. Nothing more. Not even a wiring schematic. Not a big deal if you know how to connect things up. But if you don't, yea, go for the whole kit. We installed this on a 2005 31' Jamboree motorhome. I had to clip the connector off and connect it the old fashioned way (head scratchin' and wire nuts). I also used the control box original to our RV (more connector cutting, etc.). Still, it took only a couple hours to install. It looks great, works great, and (the most important part) the wife is happy. Our old, original unit still worked but was pulling about 27 amps - way too high. I think the power problems we had at an RV park a year ago (very low voltage) killed the compressor (low voltage = lots more heat). This one is pulling about 13 amps. Oh, you really should get some help getting it to the roof. I don't have any friends so I did it myself (sucked!). But it can be done. Just be really careful, take your time, think it through, and stretch those muscles before you get under it. Hopefully, you have a friend or two who can help. Ok. I'm off to take a nap in the cool air.
First one made it in quick but I was slightly disappointed when my electrician wired it in and the fan motor didn't work. That disappointment faded as soon as I called customer support. Not only were they polite and helpful, they shipped the replacement before receiving my return which meant I didn't have a gaping hole in my roof to keep covered long. New one works perfectly. Couldn't be happier with the customer service I received. Will definitely be a returning customer.
As of 5/24/26 @ 15:00 hrs central time the Advent ACM135B is installed and fully operational, cooling the bedroom of my rv perfectly.
Product arrived in excellent condition with no defects. Installation was as expected. Did rent a material lift from Home Depot which made the trip to the roof much easier and safe for this old man of 75yrs.
Thank you for the ease of ordering and your contact to let me know status of my order.
This was a direct replacement for my 2013 Dometic AC unit right down to the 6 pin plug and the mounting bolts. It hooked up to the existing control unit without issue and runs all speeds.
Initially this was great. Well considering I had no A/C before, I think I would have loved anything. However, with the air conditioning set at 74, the air conditioning will sit at 80. We aren’t even in the hot days of summer and August and I’m scared. Another HUGE ISSUE I have, is the noise. I literally have to scream to speak to people in the same room, and then it shuts off and you now have to adjust your ears, the volume in the tv, the music, your voice. It couldn’t be more annoying. I’d like to add I have thermal and insulated. curtains on all windows. I plan to contact Etrailer to see if there is anything that can be done, since this purchase is recent.
At 34.5 at the vent best a/c I have owned…. Only problem was the plug seemed like a male end and needed female end. No problem took the old one off domestic and worked great!
Condition: Badly Dinged
Notes: There are some scuffs and dings in the frames. The box is also not in good shape. Otherwise, new and unused.
Info for this part was:
At etrailer we provide the best information available about the products we sell. We take the quality of our information seriously so that you can get the right part the first time.
Kate F.
1/28/2026
Thanks so much for sharing your experience, and we’re really sorry for the frustration you’re dealing with Rebecca. We know how important a quiet, effective A/C is, especially heading into warmer months. A 15K unit should absolutely be able to cool better than what you’re seeing, so this sounds like something we’d want to dig into. In some cases, airflow issues like a loose or misaligned ceiling assembly or duct divider can cause both higher noise levels and poor cooling performance, even in well-insulated rigs. We handle a lot of troubleshooting, but Advent prefers to handle their own. I am going to send you a separate email with the information to Advent so you can give them a call. Just tell them Kate from etrailer sent you, they will make sure you get taken care of.