Is There A Replacement Unit For My Motorhome AC Duotherm?

Question

Question:

I am looking for a direct replacement for my motorhome AC Duotherm Model 600315.321 13500 BTU

asked by: Junior N

0

Expert Reply:

Hey Junior,

With the new year came new changes to our AC units. We no longer have units that are compatible with other brand units. For your Dometic Duotherm, since we do not carry those units I recommend a new system like the Advent Air # ADV95SR 13,500 btu system. This comes with everything needed to install included the distribution box and wall thermostat.

If you wanted to stick with Duotherm you would need to reach out to Dometic directly to see if they can get you that exact unit to replace. Otherwise a new system is your best bet.

What kind of trailer do you have that unit on?

expert reply by: Nick S

0

Junior

6/14/2025

It is on a 2002 Coachman Aurora motorhome

Nick S.

6/16/2025

@Junior Great motorhome right there. Advent does make a low profile that sits 10-1/8" tall so it is going to be almost the same size as your current unit. The same system but low profile is going to be # ADV65SR.

Jeremy

8/14/2025

Hi Nick, Is this the only unit that will replace the 600315.321 or do you offer any others in stock?

Nick S.

8/15/2025

@Jeremy We do have some other options. Since you will need to replace the system anything is going to work. The Advent is a great quality AC but we also carry a Furrion system # FR52TD as well as a GE Appliances AC # GE52ZR.

Answer 1

Hey Tom! Do you have a ducted system? The Furrion Chill Cube RV AC #FR69TD is a complete system that will run independently of your other AC. Even with the wall thermostat there is no way to tie it into your other air conditioner. However, I do think…

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Answer 2

Hello Chuck, Great question, and if you could let me know what page the Kevin video is on, I would love to take a look to see exactly what you are referencing. There has been a lot of mixed information in the past about what units the Advents can…

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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

Hello Sam; that is a great question! I reached out to Furrion and you will be able to use the Furrion Chill Cube #FR69TD (white) or #FR49TD (black) with your furnace. However, the remote is not capable of operating the furnace at this time. Also, we…

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Answer 5

Hey Jon; I was actually just talking to Furrion about heat options for the Chill Cube yesterday (1/21/2025). At this time, the only way to have heat with this unit is through a furnace on a ducted setup. The Furrion Chill Cube RV AC w/ Air…

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Answer 6

Hey Neil. The 18,000 Btu Furrion Chill Cube RV Air Conditioner item #LC34DX fits a 14-1/4" x 14-1/4" cutout which is pretty standard on RV's. If you meant to write Dometic instead of domestic then yes it'll fit in your existing…

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Answer 7

Hi JD; the Furrion Chill Cube #FR49TD air distribution box has a vent on it you can open and close. See the picture attached below. When it is closed it forces more of the air through the ducted system. Assuming you have a ducted system you will need…

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Answer 8

Hey Matt, Furrion typically has 4 wires running to their thermostats and the Chill Cube Thermostat #LC74DX is no exception. The harness you see with the thermostat would plug into the Chill Cube's controller and has 4 wires to extra wire to to…

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Answer 9

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 10

Hey Kyle! That is correct. The Coleman-Mach Mach-C Everest has variable-speed cooling and an inverter-driven compressor. However, the Mach-C Everest uses a traditional wall thermostat instead of a remote control. It also works with both ducted and…

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Answer 11

Hi Collin, welcome back! The most economical replacement is going to be from Advent Air. You will need a complete system since everything moved to R32 refrigerant. If your upgraded thermostat is R32 compatible, or a smart thermostat that got a…

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Answer 12

Hey Kenny, welcome back! The reason for that note is because all of the new systems since 2025 use R32 refrigerant due to EPA regulations. Any 2024 and older systems use R410A and their parts are not compatible with the R32 units. It doesn't mean…

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Is There A Replacement Unit For My Motorhome AC Duotherm?

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