Replacement Options For Older Coleman Mach 13,500 BTU AC Unit On Older Keystone RV
Published 05/13/2026
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Question:
My old Coleman-Mach 13.5K unit still cooled fine before it quit, so I don’t really want to jump up to a 15K AC. What would be the right newer Coleman replacement? thx. RV is a 90's Keystone
asked by: Boone
Expert Reply:
Hey Boone! If the 13.5K Coleman-Mach kept up before, I’d stay in that same size range with the Coleman-Mach Signature Mach 3 # CM97RR. It’s a 13,500 Btu rooftop unit, so you’re not oversizing the replacement just because the old one failed.
Just keep in mind # CM97RR is the rooftop AC only. If your current system is older and does not specifically show R32 compatibility, plan on replacing the inside parts too since they aren't backwards compatible: # CM46RR for ductless or # CM36RR for ducted. You can also add the Coleman-Mach heater kit # CM96RR if you want light electric heat. Is your current Coleman setup ducted through ceiling vents, Boone?
Product Page this Question was Asked From
Coleman-Mach Signature Mach 3 RV Air Conditioner - 13,500 Btu - Textured White - AC Unit Only
- RV Air Conditioners
- AC Unit Only
- Cool Only
- 13500 Btu
- Standard Height
- Single Zone
- Rooftop
- Ducted
- Ductless
- White
- Coleman-Mach
more information >
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