Replacement AC System for a Airxcel 48000 Series Air Conditioner
Updated 06/30/2026 | Published 06/28/2026
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Question:
My 2020 Grand Design Solitude has a Airxcel 48000 series air conditioner that is rusting out. What is the replacement?
asked by: Carol C
Expert Reply:
Welcome back Carol. To replace a Airxcel 48000 series AC unit, I recommend the 18,000 Btu Mach-C Everest Variable Speed RV Air Conditioner System item # CM35MR in white or item # CM55MR in black.
These are complete AC systems that include an 18k variable speed air conditioning unit, an air distribution box that works in both ducted and ductless orientations, and a thermostat that will control an existing furnace.
Your Airxcel 48000 series air conditioner has the now obsolete 410a refrigerant in it. The EPA changed the regulations on the refrigerant in the AC units at the beginning of 2025. They've been upgraded to R32 and none of the 410a components are compatible now with the newer systems.
What Btu is your Airxcel 48000 series air conditioner?
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Product Page this Question was Asked From
Mach-C Everest Variable Speed RV Air Conditioner System - 18K Btu - Ducted/Non-Ducted - R32 - White
- RV Air Conditioners
- Complete AC System
- Cool Only
- 18000 Btu
- Standard Height
- Single Zone
- Rooftop
- Ducted
- Non-Ducted
- White
- Coleman-Mach
more information >
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Carol C.
6/30/2026
Do those prices include shipping? If not, what is the cost to ship and how long? It is the main AC so I would need the CM55MR.