Troubleshooting New RV AC Unit Where Compressor Goes Off and On

Question

Question:

Installed new unit, seemed to work good for about a week, then started having trouble. Comes on then compressor starts coming on and off at intervals but doesnt keep running and doesnt get cold. But blower continues to run.

asked by: Mark G

0

Expert Reply:

Hey Mark, did you happen to install an Advent upper unit onto a different brand lower air distribution box? What you described sounds like the issues commonly associated with that when that goes wrong.

expert reply by: Jameson C

0

Mark G.

9/23/2025

Yes, but everything worked well for about a week then it started cycling abnormally, so what would cause that?

Jameson C.

9/23/2025

@MarkG Problem is most likely related to fact new AC units after January 2025 are designed for a different refrigerant than what older setups were so they won't work. What you will need is a new air distribution box like the part # ADV48SR if this is a non ducted setup or part # ADV98SR if it is ducted.

Answer 1

Hey, Darrell. Thanks for sharing the model number of your Airxcel AC. Based on that number, your AC is using the now phased out R-410A refrigerant. Because of that, you can’t just replace the main AC unit, you’ll also need a new air distribution box…

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Answer 2

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 3

Hello James, thanks for reaching out. Sounds like you are on the right track here. The Advent Air Low Profile RV Air Conditioner for Coleman Setup #ASA76YR is correct for replacing your Airxcel model 48254C866. It comes with an adapter harness that…

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Answer 4

Hey Eddie! You can upgrade to a 15k Btu AC and also add the heat strip. The heat strip isn't a substitute for the furnace but it is nice to have the extra help when it is cold out. The #ADV86SR is a new R32 unit, and just the AC unit, so you need…

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Answer 5

Yes, it will Stephen. The Dometic Digital Thermostat item #DMC84RR is a furnace only thermostat that is designed to work with 2-wire setups like your Atwood furnace 7916-11. The Dometic Digital Thermostat item #DMC84RR measures 3-3/8" wide x…

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Answer 6

Hey Dwayne! Your 9105306430 unit is the Dometic Penguin II High Capacity RV Air Conditioner - Single Zone item #DMC28ZR.

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Answer 7

The difference between the Class II and Class III hitches has to do with their Gross Trailer Weight (GTW), their Tongue Weight (TW), and their Hitch Receiver Size. Class II trailer hitch receivers have a 1-1/4 inch receiver and can be rated up to…

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Answer 8

In order to determine the torque rating for the lug nuts on your trailer you will need to know check out the chart I attached that shows all of the torque specs for all the trailer lugs available based on stud size, wheel material and wheel size.

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Answer 9

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 10

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 11

A 4-Way trailer connector has the basic lighting functions only; running lights, left turn signal and brake lights, right turn signal and brake lights, and ground. A 7-Way has these functions and a 12 volt circuit, a circuit for electric trailer…

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Answer 12

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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Troubleshooting New RV AC Unit Where Compressor Goes Off and On

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