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Advent Air RV Air Conditioner - 13,500 Btu - Black

Advent Air RV Air Conditioner - 13,500 Btu - Black

Our Price: $620.99
You Save: $738.49
RV Air Conditioners
Shipping Weight: 78 lbs
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This AC unit lets you replace an existing AC or add a new AC to your RV or camper. It works with your existing Advent Air, Dometic, Coleman Mach, or Carrier air distribution box and thermostat - adapter wiring kit (sold separately) may be required. Great Prices for the best rv air conditioners from Advent Air. Advent Air RV Air Conditioner - 13,500 Btu - Black part number ACM135B can be ordered online at or call 1-800-940-8924 for expert service.
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Advent Air RV Air Conditioners

  • AC Unit Only
  • Advent Air
  • Dometic
  • 13500 Btu
  • Ducted
  • Ductless
  • Black
  • Cool Only
  • Advent Air

This AC unit lets you replace an existing AC or add a new AC to your RV or camper. It works with your existing Advent Air, Dometic, Coleman Mach, or Carrier air distribution box and thermostat - adapter wiring kit (sold separately) may be required.


  • Air conditioner quickly and efficiently cools the interior of your RV or camper
    • Replaces, upgrades, or adds an air conditioner
    • Compatible with a ductless or ducted system
    • Can be paired with an Advent Air or Dometic setup
    • Can be paired with a Coleman Mach or Carrier setup using a wiring adapter (ACCOLKIT, ACCARKIT - sold separately)
  • 6-Blade fan with motor provides sufficient airflow
  • Thick, collapsible gasket with 6 foam pads provide support between RV roof and air conditioner
    • Gasket seals the opening to prevent water seepage and air leaks
    • Foam pads help reduce noise
  • Black, hard plastic cover protects internal components from water and debris
    • Can easily be removed for maintenance and cleaning
  • Bolt-on installation
    • Includes wiring harness
    • Mounting hardware not included
  • Additional accessories (sold separately) can be purchased to improve performance and comfort
    • Start capacitor (ACMSCKIT) jumpstarts the AC when a campsite or generator doesn't provide enough power
    • Electric heat strip (ACMHD) removes the chill on cold or frosty mornings
  • UL and cUL certified


  • Application: Motor homes, travel trailers, and fifth wheels
    • Not approved for school buses, food trucks, enclosed/utility trailers, or off-roading vehicles
  • Fits: roofs 2-1/2" to 5" thick
    • Opening size: 14-1/4" long x 14-1/4" wide
  • Air conditioner power draw (while running): 15 amps
  • Compressor power draw (while running): 9.9 amps
  • Fan motor power draw (while running): 2.6 amps
  • Capacity: 13,500 Btu per hour
  • Electrical rating: 115V, 60Hz
  • Air flow: 500 cubic feet/minute
  • Overall dimensions: 31-3/16" long x 24-7/8" wide x 12-13/16" tall
  • Refrigerant: R410a, 16.9 oz
  • Wire gauge: 12 AWG
  • Air conditioner weight: 68 lbs
  • 2-Year limited warranty

This Advent Air AC unit lets you replace an old or broken air conditioner on your RV or camper. It works with your existing Advent Air or Dometic air distribution box, and it is compatible with Coleman Mach or Carrier setups if used with an adapter wiring kit (ACCOLKIT, ACCARKIT - sold separately). The AC has a powerful fan and motor that provides a steady stream of air to efficiently cool the inside of your RV on a hot or muggy day. And everything you need in order to replace or add an AC unit is included, which makes installation simple and easy.

Simple Installation

Because your RV is likely already prepped and pre-wired for an AC unit, installation is simple and easy. Most AC units, including this one, 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.

Advent Air AC Collapsible Gasket and Foam Pads

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.

And in order to fully complete installation, this AC needs to be paired with your existing Advent Air, Dometic, Coleman Mach, or Carrier air distribution box and thermostat. Please note that an adapter wiring kit (sold separately) is needed if you are replacing a Coleman Mach or Carrier air conditioner.

Additional Accessories

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 (ACMHD) 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.

Advent Air Warranty Coverage

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), youll 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.

Warranty - Questionnaire  AA Questionnaire

Warranty - 2-Year Card  AA 2-Year Card

Warranty - Dealer Information  AA dealer info

ACM135B Advent Air RV Roof Air Conditioner - 13,500 Btu - Black

Item # ACM135B

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Customer Satisfaction Score:

Customer Reviews

Advent Air RV Air Conditioner - 13,500 Btu - Black - ACM135B

Average Customer Rating:  4.6 out of 5 stars   (979 Customer Reviews)

This AC unit lets you replace an existing AC or add a new AC to your RV or camper. It works with your existing Advent Air, Dometic, Coleman Mach, or Carrier air distribution box and thermostat - adapter wiring kit (sold separately) may be required.


Pleasureway motorhome. Lots of support from e-trailer and the install went well. This unit is loud. It cools the motorhome easily but could use a lower/quieter fan speed.


Super fast shipping, great price, very helpful staff. Installation was super easy. Replaced one of my original 1998 Duo Therm units with this unit. Getting the old unit unstuck was a bit of a challenge but from there it was just a matter of getting it lined up with the hole, attaching the cold control, putting the 4 bolts in, plugging it into the original connector, putting the plastic cover plate back on and turning it on! From experience I know that even the simplest of projects on an rv can snowball into a major ordeal. Without a doubt this was one of the easiest and most straightforward projects I’ve tackled. Working in 95° Oklahoma heat start to finish was under two hours and that included replacing the old foil sealing tape around the air duct. Having two strong people on top while I was inside to get it centered over the hole, getting the old unit down and the new unit up was a huge asset! I’ll be replacing the other unit sometime over the winter for sure. Just can’t think of anything negative about the whole experience.



Still running great. Took an 11 day trip this year during plus 90° temps, used it almost non stop not only while camping but while traveling down the road using the generator. Still very pleased with the purchase.


Shipping was very speedy and the installation was a snap. Was able to use the old Dometic heat strip with this unit so that was a great bonus. It is a direct replacement for the old unit and is a little smaller overall so easier to install.

Highly recommend this unit and etrailer for all the support!


Exactly as advertised, installed myself. If you aren't doing business with etrailer, you get what you deserve.


It is a very good unit. I works really well. Was very simple to install and get it running. Will recommend that anyone buying this also buy the Starter kit ACMSCKIT to. it will make it so much easier on the unit and will help with the surge every time the kicks on.



This Unit has worked great in our 1998 Coachman Pop-up camper. The company was great to deal with. The package showed up damaged but the unit still going strong.


First I appreciate your websites search feature for finding the right replacement for my RV and second the helpful videos for making the installation easier. The price was good and decent delivery time.....Thank You for your Help


Five stars so far. I just received this and installed it over the weekend at our permanent campsite. I was replacing the stock Dometic A/C unit which would no longer cool. Installation (aside from getting up on to the roof) was dead simple. This unit is quieter than the original and cooled the inside of our trailer in no time at all. The last unit ran for six years. Time will tell how this one lasts.



Time is the true test of any product. One year later and this replacement unit continues to run strong, cool quickly and stay relatively quiet compared to our previous unit.


A very clean unit.. Works perfectly. Easy to install. Came with a "soft Start" capacitor... Use it almost every day.. Replaced a dead unit, fits in the normal 14" vent square... Takes 110 AC does not need 12 volt...


I replaced my Coleman with this Advent on my 2004 Fleetwood Flair and it has worked great in the 100 degree Texas heat, It was basically a plug and play, having both schmatics switching some plug wires around. Best of all was the purchase price anf timely delivery.


After having a dometic ac for only four years. Compressor went out.I purchased the Advent air 13,500 on our first trip out mid 90's ac done fine we were in shade. I'LL have to say,the dometic was ever working properly. E trade always rocks it with delivery and costumer service


I've been purchasing the Advent air conditioner for my customers. Great AC for the price.


Advent sucks, we had issues with the unit and verified it with an AC repair company and they denied it was even their part… it came straight out of their lower unit, so I won’t be using them anymore.


Absolutely the best experience with ordering, shipping and installing these units. Super easy literally plug and play as described. I have a small issue with one of the new units freezing up now that all 3 are working again, so we will see how they handle this part of this sale.


Once I had all the correct parts (bad on me). The AC has been working great. With the weather here in south west NM (hot) it has been a life saver thanks again for all of your help



PERFECT still putting out cold air no other problems


Only took a few days to be delivered and went right in only took me an hour to take off the old one and put on the new one and it was blowing cold air


ac unit works great, keeps motorhome nice and cool


On time delivery, good customer service, and an easy company to work with.


Installed and working.


Installation was pretty simple and straightforward. The unit cools exceptionally well (freezes out the bedroom in our fifth wheel!). ONLY concern was the the packaging was pretty minimal, and the steel tray base of the unit was pretty banged up upon arrival. I was afraid the unit might have suffered internal damage, but after straightening some dents and bends in the base tray, it installed tight to the roof and fired right up. I WOULD strongly recommend to etrailer that they consider over-boxing the original packaging, to prevent this kind of damage in shipping -- these units are just about at the outside limit of what a UPS/FedEx delivery driver can handle alone, and based on the condition of the box (and the bend in the middle of the base-tray), I strongly suspect the unit must have hit the ground fairly hard coming off the delivery truck.
OVERALL, very satisfied with the product.


When the outside temperature increases, the body of the unit causes the fan squirrel cage fan to make contact with the base of the unit making a very annoying rub noise that is very audible. Changed out the squirrel cage to a new piece and still has the same issue. Otherwise, the A/C unit works great.

Etrailer Expert

Andrew N.


Sorry you are having this issue, as that is definitely not something we like to hear. It looks like customer service has reached out to resolve the issue. Sorry again that this happened and please let us know if anything else comes up!


Very east to install, quiet, shipped out quickly.


Cold air just in time thanks.


This product was NOT run tested before shipping. The squirrel cage fan in the unit was sticking on the foam housing and almost burned out the motor before I detected the problem and re-aligned the motor mount to stop this from happening.
This is NOT the way to go.
To say that I am P.Oed is understatement.
Also as I had the foam housing off I noticed that the aluminum fins on the radiator had some minor damage.
Altogether some poor and sloppy workmanship

Would NOT recommend your company again.

Etrailer Expert

Jenny N.


I can certainly understand your disappointment in the AC unit. This is not how expect the AC unit to arrive. I will have our customer service team reach out to you.


Must used a jet for delivery fastest I ever seen


There was easy to put in it's a little noisy but it does cool really good

Show More Reviews

See what our Experts say about this Advent Air RV Air Conditioners

  • Recommended Replacement AC Unit for a Dometic 13,500 Btu AC Unit
    To replace your Dometic 13,500 Btu AC unit, I recommend the Advent Air RV Air Conditioner item # ACM135B in black or the item # ACM135 in white. This Advent Air AC unit works with your existing Dometic air distribution box and thermostat. So long as they are in working order. Everything you need to replace your AC unit is included. I have attached an installation video below.
    view full answer...
  • Recommended Replacement for Advent AC135 Air Conditioner
    The 13,500 Btu Advent Air RV Air Conditioner, # ACM135 for a white cover or # ACM135B for black cover, will be a direct replacement for your current unit. You can even step up to the 15,000 Btu rated model, # ACM150 if you prefer. # ACM150B for black cover. This will be a remove and replace of the AC unit on the top of your RV, same wiring, thermostat, and air distribution system will continue to be used as is.
    view full answer...
  • How to Determine if Advent Air Conditioner Will Fit Trailer
    It is highly likely that you can use the Advent AC where the vent is now on your car trailer, though we do not have any specific blueprints or diagrams or any way to know the size of your trailer's vent opening. In order to use the Advent Air Rooftop RV Air Conditioner # ACM135 (White) or # ACM135B (Black) you would need the Ceiling Vent Assembly # ACDB and these will fit a roof opening of 14-1/4" long x 14-1/4" wide, which is the standard size opening for trailer vents so it is very likely...
    view full answer...
  • Non-Ducted Air Conditioner for Food Trailer
    The Advent Air Rooftop RV Air Conditioner # ACM135B is actually just the outside part of the AC unit and wouldn't be considered either ducted or non-ducted but you're on the right track! What you need along with Air Conditioner # ACM135B - which is Black in color but also available in White at part # ACM135 - is Ceiling Vent Assembly # ACDB to give you a non-ducted AC unit. The vent assembly will install in a 14-1/4" long x 14-1/4" wide opening in your roof and will be inside your food...
    view full answer...
  • How Does Advent Air Rooftop RV Air Conditioner # ACM135B Drain Condensation
    I spoke with my contact at Advent Air regarding the Rooftop RV Air Conditioner # ACM135B that you referenced and she did say that this unit features a port that will drain any condensation. It is designed to simply drip onto the roof and then drain off the side of the camper. If you wanted to make up some plastic tubing to attach to the port to more directly control the drainage you certainly could but it is not necessary.
    view full answer...
  • Recommended Replacement for Duo Therm Air Conditioner
    That is a possbile issue on why your breaker is being tripped. I do suggest that you also verify that the breaker itself does not need to be replaced. If it is a weakened break, you may be compounding the issue. And yes, to your other question, the Advent Air RV Air Conditioner part # ACM135 and # ACM135B are designed to be a direct replacement for the Dometic units. This will be a great option, and my recommendation for replacement providing you have an in good working order air distribution...
    view full answer...
  • How Thin Can A Roof Be To Install The Advent RV Air Conditioner
    A roof can be as thin as 2-1/4" and as thick as 5" to install the Advent RV Air Conditioner # ACM135B.
    view full answer...
  • AC Unit Recommendation for Reflection 280RS that is Pre Wired
    The Advent Air AC unit part # ACM135B would be a great choice for your Reflection 280RS that is designed for ducted applications, is cost effective, and also comes with wiring that would plug into the pre-wiring of your RV.
    view full answer...
  • Fan/Blower Specs For The Advent Air Rv Air Conditioner ACM135B
    I reached out to my contact at the manufacturer and I was told that the Advent Air Ac Unit # ACM135B have a fan speed of 400 CFM.
    view full answer...
  • Can the Advent Air RV Air Conditioner Be Recharged
    The Advent Air RV Air Conditioner part # ACM135B like most RV air conditioners are sealed so they cannot be recharged aka there is no service port. That said, the unit has a two year warranty so if there are any issues within this time frame you will be covered. We don't offer any rechargeable RV air conditioners at this time.
    view full answer...
  • Does Advent AC Unit # ACM135B Come with Refrigerant Installed Already
    Yes, the Advent Air Conditioner unit part # ACM135B that you referenced comes with R410A refrigerant already installed.
    view full answer...
  • Best AC Unit Recommendation to Replace Advent Air 13.5k BTU Unit
    Sine you have an Advent Air 13.5k btu unit now the easiest solution would be the exact same thing with the part # ACM135B as this will give you a very simple install that plugs right in and bolts right up. If you wanted a little extra cooling capacity the 15k btu unit version part # ACM150 would provide that and also have just as easy of an install as the 13.5k unit. This sounds like your best option.
    view full answer...
  • White Advent Air Rooftop RV Air Conditioner Unit Recommendation Plus Install Kit
    The white version of the Advent Air Rooftop AC Unit part # ACM153B is the part # ACM135. To install this you'll also need the thermostat and vent kit part # AT15021 and you'd be set!
    view full answer...
  • What is the Coldest Temperature Setting For the Advent Air RV Air Conditioner?
    The Advent Air RV Air Conditioner # ACM135B paired with their Air Distribution Box & Thermostat # ACRG15 will have a lowest temperature setting of only 60 degrees Fahrenheit. You will need a refrigerator truck type unit to be able to get the temperatures that low and you will need to create an insulation system inside your enclosed trailer. As a general rule of thumb depending on insulation factor and AC unit I use a 20 degree swing. You can generally only expect the air conditioner to...
    view full answer...
  • Replacement Blower Motor for Coleman Mach 15 Air Conditioner
    While we do have some great air conditioner options for you, we unfortunately do not sell replacement blowers for any air conditioner models we carry. With that being said, the best option would be to reach out to Coleman to see if they carry the exact replacement you need. However, if you conclude that you need the unit replaced, a great cost-effective option is the Advent Air RV Air Conditioner # ACM135 (white) or # ACM135B (black). This model comes with 13,500 BTUs and has a 14-1/4"...
    view full answer...
  • Replacement for Dometic Duo Therm 13,500 Btu Air Conditioner
    The Advent Air Conditioner you mentioned will be a replacement for your Dometic Duo Therm 13,500 Btu AC, and it is available in either black or white. - Black: Advent Air RV Air Conditioner - 13,500 Btu # ACM135B - White: Advent Air RV Air Conditioner - 13,500 Btu # ACM135 To add a heat strip to warm you up on a cold morning you will need the Electric Heat Strip # ACMHD, and the Start Capacitor # ACMSCKIT is a good idea to ensure your AC is always able to start. I have added links to...
    view full answer...
  • Recommended Advent Replacement AC for Dometic AC Unit
    I do not see where there is need for special hardware to adapt the option of the Advent Air RV Air Conditioner, # ACM135B AC in place of an existing Dometic unit. However, adapting the wiring is something that will need to be addressed. I suggest you select the Advent Air Replacement RV Air Conditioner for Dometic Setup w/ Start Capacitor, # ACDOM135B. This option in the 13,500 Btu AC unit is a bolt-on installation that includes wiring harness and mounting hardware. It plugs directly...
    view full answer...
  • Will Advent Air AC Unit for Coleman Setups Replace Coleman 13.5k
    The Advent Air Replacement AC Unit for Coleman Setups part # ACCOL135 will replace your Coleman unit that you have now and will work great.
    view full answer...
  • Replacement Fan Blade For An Advent RV Air Conditioners
    In order to find the correct replacement fan blade for your 2012 Forest River Cherokee, I am going to need to know what you have in your trailer currently. For instance, if you had the Advent Air RV Air Conditioner # ACM135, then you could use the: -Replacement Fan Blade for Advent Air RV Air Conditioner # PXX128050095. This fan blade will also fit the: # ACM135B, # ACM150, and # ACM150B. If you let me know what air conditioner you have currently, I'd be happy to see if we have something...
    view full answer...
  • Recommended For Best Replacement For Dometic Duo-Therm 620426.321 & Heat Strip
    For the simplest and most straight forward 13.5K btu replacement of your current Dometic air conditioner we have several options. Each of these AC's plug directly into your Dometic setup to work with your existing air distribution box. The Advent Air RV Air Conditioner, # ACM135 is a 13,500 Btu unit that comes in white cover. The # ACM135B is the same unit with a black cover. We also have these same units configured with a start capacitor, # ACDOM135 in white and # ACDOM135B for black. All...
    view full answer...
  • Recommended Replacement for 13,500 BTU Dometic Brisk II Rooftop Air Conditioner
    For a 13,500 Btu replacement of your current Dometic Brisk II AC unit, I recommend the Advent Air Replacement RV Air Conditioner for Dometic Setup, # ACDOM135 for white cowling. Or, for a black cowling, # ACDOM135B. These options come with a start capacitor that will store energy to ensure you can always start up your AC, and will work with your current thermostat; your options are the following:
    view full answer...
  • Adding a Heat Strip to Advent AC Units
    The Advent Air Electric Heat Strip - 5,500 Btu # ACMHD can be added to many of the Advent Air Conditioner Units. It can be added to the following to take the chill out of the air: # ACM135 - 13,500 BTU White Air Conditioner # ACM135B - 13,500 BTU Black Air Conditioner # ACM150 - 15,000 BTU White Air Conditioner # ACM150B - 15,000 BTU Black Air Conditioner I also recommend getting the start capacitor # ACMSCKIT to allow you to start your AC without any additional current draw needed which...
    view full answer...
  • Replacement A/C For A 2006 Carriage Cameo With A Carrier A/C
    For your old Carrier A/C you can use either the: -Advent Air RV Air Conditioner # ACM135 for white, or, -The Advent Air RV Air Conditioner # ACM135B for black. You're going to also need the Carrier Adapter Wiring Kit for Advent Air RV Air Conditioners # ACCARKIT to be able to use your existing Carrier ceiling vent and thermostat. I did some research on your older Carrier unit, and it appears that you have a 13,500Btu heating capacity, ducted unit, that has the cool only option, no...
    view full answer...
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  • Advent Air Conditioner Replacement For Carrier, Dometic or Coleman-Mach Air Conditioner
    The only way to know if you have a Carrier or Dometic air conditioner is by looking at your air conditioner, which can certainly be a pain as it's on top of your trailer, but that's the only way to tell what you have. That said, the Advent air conditioners that will work as replacements are the same no matter if you have a Carrier or Dometic, the only difference will be if you need the Carrier adapter or not. You can choose from either 13,500 Btu or 15,000 Btu and if you want White or...
    view full answer...

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