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Replaces a 10-pin to 4-pin adapter for Dometic Atwood water heater circuit boards.
Features:
Fits:
Videos are provided as a guide only. Refer to manufacturer installation instructions and specs for complete information.
Hi there, I'm Michael with etrailer.com. Today, we're gonna take a quick look at this Dometic 10-Pin to 4-Pin Circuit Board Adapter Plug. This is going to work for your Dometic Atwood water heaters. So a while back, they started switching from their older style 4-pin circuit boards to a 10-pin circuit board. So if your older style circuit board goes out, you'll probably have to replace it with that 10-pin circuit board, but then you're left with your 4-pin wire plug not working, so that's what this adapter is for. It's going to allow you to connect that new 10-pin circuit board to your 4-pin wire plug.
This is gonna work for your older Atwood Dometic water heaters with that 4-pin connector. So if you are needing to replace that circuit board, if you've already replaced the circuit board and you've run into that issue where the 4-pin wire plug is not working or not plugging into your circuit board, that's what this is gonna be for. Because this is a component from Dometic, you can trust it is going to work with your Dometic Atwood water heaters, so you don't have to worry about fit issues or compatibility problems. So if you are needing to replace that circuit board, this is gonna be what you need. That's gonna complete our look for today.
Again, I'm Michael with etrailer.com. Thanks for watching..
Ratings & Reviews
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Kate F.
9/28/2026
I completely understand your frustration, especially since you were expecting this to be a plug-and-go adapter. The # DMC47FR is designed to connect your existing 4-pin water heater harness to the newer 10-pin circuit board. The 10-pin end of the adapter plugs directly into the new circuit board, and your existing 4-pin plug connects to the 4-pin side of the adapter. You should not need to take apart your existing plug or move the individual wires into the 10-pin connector that came with the new board. Before you take anything apart or rewire your existing plug, can you please send me a clear picture looking directly into your existing 4-pin plug, both ends of the # DMC47FR adapter, and the 10-pin connection on your new circuit board? You can do so by responding directly to the email you receive. I appreciate your time.