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  1. RV Air Conditioners
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Advent Air Replacement RV Air Conditioner for Carrier Setup - Start Capacitor - 13,500 Btu - Black

Advent Air Replacement RV Air Conditioner for Carrier Setup - Start Capacitor - 13,500 Btu - Black

Our Price: $716.97
RV Air Conditioners
Shipping Weight: 1.95 lbs
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This AC unit replaces the Carrier air conditioner on your RV or camper. Included adapter wiring kit enables the AC to work with your existing Carrier setup. The start capacitor jumpstarts the AC when camp power or generator power isn't enough. Great Prices for the best rv air conditioners from Advent Air. Advent Air Replacement RV Air Conditioner for Carrier Setup - Start Capacitor - 13,500 Btu - Black part number ACCAR135B 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
  • Carrier
  • 13500 Btu
  • Ducted
  • Ductless
  • Black
  • Cool Only
  • Advent Air
  • With Start Capacitor

This AC unit replaces the Carrier air conditioner on your RV or camper. Included adapter wiring kit enables the AC to work with your existing Carrier setup. The start capacitor jumpstarts the AC when camp power or generator power isn't enough.


  • Air conditioner replaces your Carrier rooftop AC to quickly and efficiently cool the interior of your RV or camper
    • Compatible with a ductless or ducted system
  • Adapter wiring kit enables air conditioner to work with your existing Carrier setup
  • 6-Blade fan with motor provides sufficient airflow
  • Start capacitor jumpstarts the AC when a campsite or generator doesn't provide enough power
    • Stores energy that will later be used for the next startup
  • 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 and mounting hardware
  • 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): 12.6 amps
  • Compressor power draw (while running): 9.9 amps
  • Fan motor power draw (while running): 2.6 amps
  • Cooling capacity: 13,500 Btu per hour
  • Electrical rating: 115V, 60Hz
  • Air flow: 500 cubic feet/minute
  • Overall dimensions:
    • Air conditioner: 31-3/16" long x 24-7/8" wide x 12-13/16" tall
    • Start capacitor: 2-1/8" long x 3-5/8" deep x 6-5/16" tall
  • Refrigerant: R410a, 16.9 oz
  • Wire gauge: 12 AWG
  • Air conditioner weight: 68 lbs
  • 1-Year warranty

This AC unit from Advent Air is designed to replace the old or broken Carrier air conditioner on your RV or camper. The included adapter wiring kit ensures that the AC works seamlessly with your existing, in-good-working-order Carrier air distribution box and thermostat. 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. The included start capacitor will help jumpstart the AC. This beneficial upgrade provides the AC a boost when shore power or generator power isn't enough to start it. And everything you need in order to replace your AC unit is included, which makes installation simple and easy.

Start Capacitor

Advent Air Start Capacitor

If your campsite or generator isn't able to draw the power you need, then you may have difficulty starting your AC unit. The included start capacitor, however, can eliminate this problem. The capacitor stores energy that will later be used to jumpstart the AC. Once the sufficient amount of power has been supplied to the AC, the compressor will start to run, and the internal relay switch will turn the start capacitor off. At the same time, the compressor will send "back voltage" to the relay switch and capacitor in order to energize them for the next startup.

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 required during installation.

To install the start capacitor, bolt it to the fan motor support with the included hardware and then route the wires to the run capacitor.

Once installed, the hard plastic cover on the AC can easily be removed for maintenance and cleaning.

Advent Air Warranty Coverage

1-Year 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 - Dealer information  AA dealer info

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

ACCARKIT Advent Air RV Air Conditioner Adapter Wiring Kit for Carrier

ACMSCKIT Advent Air Start Capacitor for RV Air Conditioners

Item # ACCAR135B

Installation Details ACCAR135B Installation instructionsAlternate Instructions ACCAR135B Installation instructions

California residents: click here

Customer Reviews

Advent Air Replacement RV Air Conditioner for Carrier Setup - Start Capacitor - 13,500 Btu - Black - ACCAR135B

Average Customer Rating:  4.6 out of 5 stars   (950 Customer Reviews)

This AC unit replaces the Carrier air conditioner on your RV or camper. Included adapter wiring kit enables the AC to work with your existing Carrier setup. The start capacitor jumpstarts the AC when camp power or generator power isn't enough.


I am very pleased with my order. The AC works very well and customer service was outstanding. Paula at etrailer went above and beyond to get my order shipped very quickly. I have told all my friends about her and etrailer and would highly recommend them to anyone shopping for rv parts.


Good communication! Received unit as p lanned!



This ac works well but is noisy. I have a 2005 jayco greyhawk and my ac unit went Caput. This fit the ticket and shipping was fast from etrailer. Will buy from them again.


On time delivery easy to install. Installed 1 hour ago seems to be cooling good and quieter than old carrier unit I replaced


great cooling for my camper.


Advent 15000 BTU AC. Best price I could find on the internet or anywhere else for that matter. I received the unit 4 days earlier than expected which was a good thing. The installation, including getting it on the roof, was about 30 minutes. The Advent was a direct replacement for a 4/5-year-old Dometic Brisk II that quit cooling. The Advent is slightly quitter that the Dometic but of course that is only my subjective opinion. On low speed you can continue an intelligible conversation. The Advent has been installed 3 days now and it is working great.
I have purchased from etrailer in the past and have been completely satisfied. There are three concern/issues that need to be mention/address. (1) Packaging could have been better. The box it came in looked like it had been rolling around in the back of a UPS truck. (2) There was no installation instruction or owner’s manual whatsoever that came with the unit. I pulled mine off the internet. (3) the unit had minor damage on the base or main frame of the unit (I hope it does not cause issue later). The damage was not so bad as to cause forgoing the installation. Since the shipping box did not show any noticeable damage at the location of the damage on the unit, I can only assume that it was shipped by etrailer that way which is a QC issue.


Shipped quick , once was restocked, came in with small damages to outside shell and small dent on side, almost pinched copper line, should be packaged better from company for shipping (not an ETrailer issue)so far unit seems to be working better then the original (never worked) and replacement 13500 units that Camping World had put on trailer (took off another trailer) so I decided to buy my own to replace since no trust in Camping World and work performed


Have an 1999 Ford E-150 van used as an RV. I built a 30 amp box with 2-20 amp circuits several years ago. I and 3 doggies travel all over the SE for dog agility competitions. Loading and lifting a window A/C unit into the driver's side widow worked, but a major task. I cut and framed a hole in the van roof and installed the Advent ACM150. Had to install 12 volt system for thermostat and fish both 110 and 12 volt wire through walls and ceiling. A/C turned on perfectly the very first time I pushed the thermostat on button. Wowee...100 degrees outside; 69 degrees in the van. Absolutely life changing for me an my doggies. P.S. I am a nice 75 year old lady and still cannot believe I did this install all by myself. One year and miles later, this A/C is perfect!


My Dometic had a leak after 6 years. I decided to replace it with this Advent and couldn’t be happier. Total install time by myself was about an hour and a half including the soft start install. I watched a couple of videos which helped greatly. It’s shown here with the old unit in front. I’ve had it for about 2 days and it will take it down to 65 degrees.


Great! Plug and play set up- took an hour at most- 91 degrees out and cooled down inside with in 30 minutes
One down one to go! Hardest part, getting AC on top but, managed no problem. E Trailer did good.


Unit works great. Took an hour to change out. Hooked up as advertised. We replaced a Coleman Mach 3 13,500 btu for the 15,000. Puts out a lot of CFM.

Unfortunately, UPS shipping damage occurred in transit. Really nothing you can do about them being careless with your packages.


Great unit. Great instructions with photos. Installation was a breeze, once the unit was on the roof (took two people to slide up a long ladder. But was also used to return removed unit to the ground). Connections with the Carrier remote interface were simple plug-&-play. Everything worked on initial start up, and continues to do so. I recommend it, & Etrailer.


Easy install. Plug n play fit perfectly. Hardest part was getting it on top of TTrailer. Working great after 1 year.
About half price of dealer Dometic OEM AC


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.


Installed today and what can I say. Installation. Was a breeze. Start capacitor bolted right into place on the unit and the six pin connector fit perfectly into my Domitec setup. Air was pushing sub 30 degree cool air. This AC was installed on a 2018 Keystone Cougar 315 fifth wheel.


The unit is smaller than the unit I replaced and the fit was perfect at the access way. The Advent was plug and play with the Dometic harness and lower bezel. I couldn't be happier I had to look up torque specs for the gasket, as there were no instructions, but it was just a Google search (33-35 inch pounds)


DOA on arrival. ETrailer would not take it back. Had to deal with manufacturing company who made me pay for a tech to run diagnostic to find out whats wrong. They sent the tech a check and I was never reimbursed. Would you buy something then pay money to jump through hoops to prove it was defective? Will never buy anything from etrailer again!


The product is excellent. I am giving 4 stars because the unit did not fit with the existing controller. Thankfully a friend was able to engineer a solution; otherwise I would have had to return it.


My 3 year old dometic had the 120v wire rub thru on ac refrigerant line going to compressor and arced a hole in it. 20,000+ miles on RV, fulltime. I needed a replacement in a hurry for Labor day weekend. I tried to find a like Dometic unit but could not get one in time to install before weekend. With great reservation I ordered the Advent direct replacement from etrailer, I watched their videos and read reviews, good and bad. I wanted the Dometic brand but had to take a chance, within 20 min I had old unit removed sitting on roof next to opening, 6 screws inside cover, 4 long bolts to unit, freeze sensor lead, and one 6 wire connector. Stop here, the area between outside unit and inside cover had duct work and had gap between roof and inside ceiling, there was duct tape sealing this area and it was all peeled off and gaps, so hot air would be circulating in the ac outlet area, we spent a hour taping this space up to eliminate air leaks to and from roof in the ac interior air box. back to install the new unit set right in place and bolted down, plugged in wire and freeze sensor had a indicator where to install it in the evaporator. I failed to mention installing the start capacitor that came with the unit is easy as well, you could do it before or after, i chose to do before on the ground and not on roof. bolted down the unit and plugged in 6 pin connector. turned on AC and immediately surprised by noise level, easily 1/3 to half quieter than old unit? i believe largely due to old tape in duct work causing air noise. but may be the unit itself. ran this unit 4 days non stop in 90+ degree weather and it cooled better than old unit? again not sure if its the unit or the fixing hot air bypassing in the interior area of ac discharge. Very happy with unit and if it lasts 2 years I will be happy, don’t hesitate to get this, i had never replaced a rv ac unit before and it took less than an hour minus fixing the air box of the rv. etrailer shipped the unit in a timely manner, I had concerns with shipping times and they provided great feedback during the shipping process. 2021 MPG TR BH2100


Box was a little beat up And one small debt in cover. Overall it needs a little bit more cushion or packaging around the back end of the unit


This by far was the easiest installation of an RV Rooftop AC Unit! Literally several phillip head screws to undo the switch panel. Then unplug the old unit from the switch panel four 7/16 screws removed and then lift out the old unit. Unscrew the old fan vent with two screws. Screw this back onto the new unit, lift in place and bolt down the new unit. Less than an hour installation. And a great dollar savings over the original unit.


I am really impressed that etrailer waited a year before asking for this review. This allows me to state that their product was an easy to install plug in replacement for Duo-therm 600315.331 AC unit in my 2006 Holiday Rambler. It was not as low profile as the OEM Penguin, but still fit easily with no new wiring or thermostat change. It was 1/3 the cost of the OEM replacement and worked perfectly under hot summer conditions in the Central US.


Shipping was very fast... Thank you. However, quite a bit of minor damage was done to my unit during shipping. The base plate of the entire unit had a HUGE indentation where it was probably dropped on something and I was able to bend everything back with a large hammer. Also the foam insulative protection around the condensor was ripped away from its mount and cracked in half. I repaired it with silicon seal. You guys really need to do something about shipping damage. I haven't installed the unit yet and am keeping my fingers crossed hoping it will work as intended.

Show More Reviews

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Info for this part was:

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