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Soft Start for Coleman-Mach Signature Mach 3  

Published 08/17/2026

Question:

Which soft start is compatible with the coleman mach3 CM38RR. Thank You

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Expert Reply:

Hey Curtis, welcome back! You can use the Soft Start Kit for Coleman-Mach RV Air Conditioners # CM56RR with the Coleman-Mach Signature Mach 3 # CM38RR. This is specifically designed for Coleman-Mach systems and will reduces start-up amperage by up to 75%.

Are you replacing your older Coleman-Mach system with the # CM38RR, or are you planning to use it with your existing setup?

expert reply by:
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Robin H
Soft Start Kit for Coleman-Mach
Soft Start Kit for Coleman-Mach
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Curtis G. profile picture

Curtis G.

8/17/2026

Hi Again, Im replacing a 20yr old dometic unit on my '06 carson toyhauler 22'. She seized up on our last outting. And im not interested in trying to fix it cause of its age. Figured time to move on and just replace it. Another question..do you ship direct to my house in socal?

Robin H. profile picture
Etrailer Expert

Robin H.

8/17/2026

@CurtisG good idea, especially since old parts have been phased out for any R410a units. The # CM38RR is a complete system so it has everything you need for replacement. Yes, we can ship this directly to you.

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