Will 2019 Coleman-Mach AC Controller Work With Coleman-Mach Signature Mach 15
Updated 05/16/2026 | Published 05/15/2026
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Question:
I have a Coleman Mach that is a 2019, my controller wont run this? My controller runs my AC and heat now.
asked by: Troy
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?
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Product Page this Question was Asked From
Coleman-Mach Signature Mach 15 RV Air Conditioner System - Ducted - 15,000 Btu - Polished White
- RV Air Conditioners
- Complete AC System
- Cool Only
- 15000 Btu
- 115V
- Single Zone
- Rooftop
- Ducted
- White
- Coleman-Mach
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