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Coleman-Mach Signature Mach 15 RV Air Conditioner System - 15,000 Btu - Non-Ducted - R32
(14 reviews)
Price: $1,359.04
In Stock
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Coleman-Mach Signature Mach 15 RV Air Conditioner System - 15,000 Btu - Non-Ducted - R32
Part Number: CM43RR
In Stock
$1,359.04
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- All Info
- Reviews (14)
- Q & A (0)
- Photos
Coleman-Mach RV Air Conditioners - CM43RR
Highlights
- Reliable Cooling Power: 15,000 Btu output keeps the interior cool even in hot weather.
- Simpler Upgrades: Matched rooftop and air box kit removes guesswork during replacement.
- Direct Ceiling Control: Reachable knobs and adjustable dampers let you fine-tune airflow easily.
- Less Maintenance Hassle: Pop-out grilles make filters quick to remove, rinse, and reinstall.
- Ready for Cool Mornings: Supports optional 5,600 Btu heat strip for light heating.
- Built for Longevity: Copper tubing and sealed joints help it stay leak-free season after season.
Features to know about
Keeps You Cool When It’s Blazing Out: 15,000 Btu of Steady Cooling
When the heat builds up inside, this 15,000 Btu system drops the temperature fast and keeps it there. The large coils and airflow-boosting fins pull heat out efficiently so the air feels dry, cool, and breathable. It’s the kind of cooling power that makes a long afternoon actually comfortable again.
Simplifies the Upgrade: Matched Rooftop and Air Distribution Kit
No mix-and-match headaches here. The rooftop unit and air distribution box are built to work together, so installation is straightforward and you know everything fits right. It’s a complete AC system designed as one matched kit, which makes replacing an older setup or adding a new one much easier.
Easy-to-Reach Controls Right at the Ceiling
The air distribution box puts simple knobs and adjustable dampers within easy reach. You can direct airflow exactly where you want it without hunting for remotes or climbing over furniture. When it’s time to clean the filters, the pop-out grilles snap free in seconds—no tools needed, just rinse and go.
Optional Warmth for Chilly Mornings: Heat-Ready Design
When mornings feel too cold for comfort, this unit can take the edge off with an optional 5,600 Btu heat strip (sold separately). It installs easily and runs quieter than a full furnace cycle, giving you that extra bit of warmth without heavy power draw.
Built to Last Season After Season
Durable copper tubing and secure joints help this system hold up over time without leaks or performance drops. With a 12V DC setup drawing 13.9 amps in cooling mode and using R32 refrigerant that meets 2025 EPA regulations, it runs efficiently while keeping your comfort consistent year after year.
Specs
Weight and Capacity
- Capacity: 15,000 Btu per hour
Dimensions and Weight
- Air conditioner overall dimensions: 38" long x 28-1/16" wide x 13-13/16" tall
- Opening size: 14-1/4" long x 14-1/4" wide
Power and Operation
- Voltage: 120 Volt AC
- Amperage (Cool): 13.9 amps
- Amperage (Heat): 16 amps
- Amperage (Desert): 18 amps
Color
- Air conditioner: Textured white
- Air distribution box: White
Warranty
- Air conditioner: 2-year limited
- Air distribution box: 1-year limited
38264-066 Coleman Mach Signature Mach 15 RV AC - 15K Btu - Textured White
9430E715 Coleman Mach Deluxe Air Distribution Box for Non Ducted RV ACs - White
Ratings & Reviews
4.8
14 reviews
by:
Jim
09/06/2026
I wanted to wait until I used this unit before reviewing. I replaced an old dometic 13,500btu with the Mach 15, 15,000btu. WOW; it sure does it job for my smaller Wolf pup camper. So far I am pleased.
by:
Kathleen
06/14/2026
We received the air conditioning system quickly. I had only one issue with one of the brackets. It was bent on arrival but I was able to bend it back into shape. We installed the unit and it works great!
by:
William
08/26/2026
It was an easy replacement for my 22 year old Coleman Mach 15 btu heat pump. The compressor was tired and noisy. I was told I couldn't use my existing thermostat
and would need to use the one supplied in the kit. This was incorrect, I made a schematic combining wire color and pin designation for operation minus heat pump. The existing thermostat operates the A/C and gas heater as before.
The new system works fine and is quiet.
What should I do with the supplied thermostat??
and would need to use the one supplied in the kit. This was incorrect, I made a schematic combining wire color and pin designation for operation minus heat pump. The existing thermostat operates the A/C and gas heater as before.
The new system works fine and is quiet.
What should I do with the supplied thermostat??
by:
R
06/29/2026
I've replaced several various units on various trailers and so far this has been my favorite unit to work on and seemed to blow cold the best
by:
Jessie
06/23/2026
Ac unit was good the heating element did not work for that control box
by:
Louis
06/02/2026
Excellent customer service and proper, product knowledge!
by:
Dean
06/21/2026
Came slightly damaged but nothing that couldn’t be straightened. Unit works very well. It was certainly a positive upgrade
Mike L.
6/23/2026
Glad to hear that Dean, nothing worse than being too hot when you're camping!
by:
Jarrell Newhouse
09/17/2025
The units were in great shape as they were delivered. when I was putting in my order the screen said Sunday delivery, when I submitted the order it changed to Monday, when I tracked the order it said Tuesday. It was Tuesday that it was delivered. that is the only negative thing about my order. everything else is as ordered. I did not realize I ordered the units with the control knobs but that was my mistake. I really needed the ones with the thermostat controls. If there is a kit to switch it from the knobs to the thermostat I would love to know what it is.
by:
Ernie
10/21/2025
E-trailer is the place to buy delivery purchasing everything all good the Coleman air conditioning rooftop no problems simple to install and works great
by:
Terry E
02/19/2026
Haven’t installed yet but the product came in properly.
Thanks
Thanks
by:
James
09/19/2026
by:
Kevin
08/05/2026
by:
Benny
04/05/2026
by:
Mark
07/02/2026
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See what our Experts say about this Coleman-Mach RV Air Conditioners
- Replacement for Coleman-Mach AC on Travel TrailerHey Kyle! You can replace your old Coleman-Mach AC with one of the new ones. However, you will need to replace the thermostat and air distribution box as well. All of the new AC units use R32 refrigerant following the 2025 EPA guidelines so any old R410A components aren't compatible. We have 13,500 Btu or we have the 15k units if you want to upgrade. You can choose from the following based on color and ducted/ductless: -Coleman-Mach Signature Mach 3 RV AC System - Ductless - 13,500 Btu...
view full answer... - Difference Between Coleman-Mach Roughneck Mach 15 and Signature Mach 15Hey Bill, great question! The Signature Mach 15 is your standard AC unit which is probably what you want. The Roughneck has a fortified interior making it ideal for off-road and heavy industrial vehicle applications. Basically it is made to take more of a beating. If you had an old carrier and it is wearing out from use over time (I'm guessing that is the case here) the Signature is what you want. If you have been off-roading with your trailer lately and it killed off the Carrier then...
view full answer... - Adding 3rd Coleman-Mach AC to Ductless Setup With High CeilingHey Mike! Since the ceiling controls on the # CM43RR would be too high to reach you can use the Coleman-Mach Signature Mach 15 RV Air Conditioner System # CM32RR with the wall thermostat. This is the ducted version, but the AC itself is the same with the ADB and thermostat being the difference. You can simply leave the louvers open so it dumps air directly into the room. Since the systems aren't tied together, you could also add an AC like the Furrion Chill Cube # FR59TD. This operates...
view full answer... - Can Coleman-Mach AC Replace Dometic Duo-Therm on 2014 Forest River Travel TrailerHey Earl! Yes, the Coleman-Mach Signature Mach 15 AC system can replace your old Dometic Duo-Therm. These are new R32 refrigerant units (everything is as of 2025) so a complete replacement will be necessary. You can choose from the following based on ducted/ductless and the color: -Coleman-Mach Signature Mach 15 Air Conditioner System - Ductless - 15,000 Btu - Textured White # CM43RR -Coleman-Mach Signature Mach 15 Air Conditioner System - Ductless - 15,000 Btu - Polished White # CM93RR -Coleman-Mach...
view full answer... - Looking for Replacement Coleman RV AC Unit to Replace Unit from 1992Hey Thomas, thank you for the picture but in January of 2025 there was a law change and all new AC's from that point forward for RVs had to use a new refrigerant. Because of this the complete systems had to change. So while we can still help there's no component from your old setup that will still be able to be used. So for a new Coleman setup you'd need something like the non-ducted kit part # CM43RR which comes with a new lower air box and everything else needed to install. Or are you...
view full answer... - Coleman Non-Ducted AC Unit for 2022 Keystone Cougar With AC Bedroom PrepHey Earl! As far as I know the AC prep will have 12V and 120V power wires up there on your Cougar so you don't have to run any additional wire for the installation. Coleman has a lot of options for ductless applications, and you can choose from the following based on color and capacity: -Coleman-Mach Signature Mach 3 RV AC System - Ductless - 13,500 Btu - Textured White # CM38RR -Coleman-Mach Signature Mach 3 RV AC System - Ductless - 13,500 Btu - Polished White # CM58RR -Coleman-Mach...
view full answer...
Do you have a question about this RV Air Conditioner?
Info for this part was:
Expert Research:
Jameson C
Edited by:
Mary K
Updated by:
Wilson B
Updated by:
Daron K
Updated by:
Dawn Z
Updated by:
Sabrina W
Written by:
Matthew S
Installed by:
Andy C
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Kate F.
8/31/2026
I'm glad to hear you were able to get everything up and running and that the new Coleman-Mach is working well and much quieter for you, William! Since the thermostat was included with the # CM32RR system and you were able to configure your existing thermostat to operate the A/C and furnace, I would hang onto the supplied thermostat as a spare. I am shocked to hear that your original thermostat, we have been told by most of the AC manufacturers that the new R32 thermostat has to be installed, so this is nice to know.