bing tracking image
Customer Service My Orders
  1. Home
  2. Help Videos And Articles
  3. RV Air Conditioners Help Hub
  4. RV Air Conditioners Q&As
  5. Question 852684
Q & A Icon

Will 2019 Coleman-Mach AC Controller Work With Coleman-Mach Signature Mach 15  

Updated 05/16/2026 | Published 05/15/2026



Question:

I have a Coleman Mach that is a 2019, my controller wont run this? My controller runs my AC and heat now.

0

Expert Reply:

Hey Troy! The # CM49RR will not work with your existing controller. Your 2019 Coleman-Mach is an old R410A unit, and everything switched to R32 in 2025 due to EPA regulations. The # CM49RR operates at different pressures and temperatures, and uses different communication protocols, so it is not backwards compatible with old R410A parts. The same is true for any new R32 AC unit.

You will need a complete system if you need to replace your AC. For the same unit that would be the Coleman-Mach Signature Mach 15 RV Air Conditioner System - Ducted - 15,000 Btu - Polished White # CM52RR. This includes a new air distribution box as well as a wall thermostat for a complete setup.

What kind of trailer are you working on?

expert reply by:
0
Robin H
Coleman-Mach Signature Mach 15
Coleman-Mach Signature Mach 15
(click to enlarge)
Ask The Experts a Question >>

Product Page this Question was Asked From


Q & A Icon

Continue Researching

See More Q&A Expert Answers >>