What Is The Gray Wire Harness For With An Atwood Air Command RV Air Conditioner System

Question

Question:

I am installing the Dometic/Atwood air command model #15028. I want to know what the thin Grey wire with the 4 conductors are used for. It has a small black connector on the end. Thanks

asked by: Fred

1

Helpful Expert Reply:

The small gray wire harness you're referencing is the connection between the controller of the Atwood system and the wall thermostat. They give you a pretty good amount of wire in case you have a larger run to where you're wanting to install the thermostat. I typically just wind up the excess and zip-tie it into a bundle up in the ceiling with the condenser unit so it's tucked out of the way.

expert reply by: Kevin C

1

Answer 1

Wall Thermostats like the Replacement Digital Wall-Mounted Thermostat for Air Command Rooftop RV Air Conditioners - Ducted #AT15029 have a cover that you gently pry off (2 tabs at top and 2 on bottom) and then 3 screws that attach the unit to the…

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Answer 2

The hardware it's referring to are the four bolts that clamp the rooftop condenser unit to the air distribution box inside the trailer. We usually just reuse the bolts from the previous unit during the installation of the new unit #ADV56FR.…

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Answer 3

Hey Andrew! Yes, Furrion does have a Chill Cube model with a heat pump. This was actually just released for aftermarket sale. You will need a complete system to make the switch, new R32 units aren't backwards compatible with old R410A systems.…

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Answer 4

Hey Melanie. The reason you can't find a replacement for your GE ARC15AACBL2 15,000 btu air conditioner is because they phased them out. In 2025 all RV AC systems had to change over to a new coolant called R32. This was a EPA mandated decision.…

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Answer 5

Hey David, it sounds like you know what you're doing but I've also gone ahead and found the wiring diagram for the Replacement Single Zone Thermostat for Dometic RV Air Conditioners #DMC79FR for you to check out so you can use it as a cross…

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Answer 6

Hey Lars, welcome back! I can indeed confirm that the Furrion Variable Speed Chill Cube air conditioner with a heat pump is indeed really happening. They are currently available for order (02/04/26) and will be shipped out towards the middle of next…

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Answer 7

Hey Doug welcome back! To replace your Dometic Duo-Therm 57915.331, I recommend the Advent Air RV Air Conditioner System item #ADV92SR in white or item #ADV62SR in black. There's no way to just replace your AC unit, you'll need to replace all…

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Answer 8

This all makes perfect sense Clinton, and you gave really good detail. Here's the good news, you can absolutely upgrade from your 13k BTU unit to a 15k BTU unit with no issues. Both sizes use the same standard roof opening, so it’s a…

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Answer 9

Hey W.F., welcome back! The Advent Air RV AC #ADV23SR you were looking at is a non-ducted setup with the controls on the air distribution box (ADB). It does not come with or require a wall thermostat. The controls are built into the ADB itself using…

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Answer 10

In order to replace your Carrier Air V RV Air Conditioner I highly recommend using the Advent Air Replacement RV Air Conditioner for Carrier Setup part #ACCAR135 for 13,500 Btu's or part #ACCAR150 for 15,000 Btu's. This unit will be the only…

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What Is The Gray Wire Harness For With An Atwood Air Command RV Air Conditioner System

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