Recommended Soft Start for a Coleman Mach 3 Plus RV Air Conditioner 38203-066
Updated 07/23/2026 | Published 07/14/2026
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Question:
Would like to confirm this unit is compatible with model number 38203-069. I see a previous response that it does work with 38000 series so I just wanted to double check. Thanks!
asked by: Kyle L
Expert Reply:
Hey Kyle. I can confirm that the Soft Start Kit for Coleman-Mach RV Air Conditioners item # CM56RR does not work with the Cole-Man Mach 3 Plus 38203-069 AC. Instead, you'll need the SoftStartRV Soft Start for Single Zone Air Conditioner Setup item # SSR54FR.
The SoftStartRV Soft Start for Single Zone Air Conditioner Setup item # SSR54FR is going to provide a comparable voltage boost by reducing startup draw by up to 70%. However, it will need to be hardwired into your Cole-Man's wiring.
What kind of trailer or RV do you have?
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Product Page this Question was Asked From
SoftStartRV Soft Start for Single Zone Air Conditioner Setup - Qty 1
- RV AC Soft Start
- 30 Amp
- Hardwired
- No Surge Protection
- Single AC
- SoftStartRV
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Craig
7/21/2026
It worked great I notice right away how slow everything started up havnt tried both air conditioners on 30amp but the big 18000 didnt miss a beat !