Replacement for Dometic Duo 13k on 2008 Keystone Passport Ultra Lite 285RL
Updated 06/11/2025 | Published 06/04/2025
Products Featured in This Question
Question:
Have a Keystone Passport Ultra Lite 285RL with a Dometic Duo 579 series 13000 btu rooftop AC, ducted with analog thermostat. The compressor has failed so I want to purchase a rooftop unit that will be compatible. I also want to upgrade to 15000 btu. I hope you will have what Im looking for. Thank you for your time.
asked by: Maurice H
Helpful Expert Reply:
Hey Maurice! We no longer recommend swapping out just the AC unit since there have been a lot of compatibility issues. Also, everything is switching to the new R32 refrigerant due to the new 2025 EPA regulations. The old parts for R410A units are already being phased out so it is a good idea to switch so you don't have to replace everything later if something fails.
Sticking with the Advent Air you looked at you can choose from the following:
-Advent Air RV Air Conditioner System - Single Zone - 15,000 Btu - White - R32 # ADV92SR
-Advent Air RV Air Conditioner System - Single Zone - 15,000 Btu - Black - R32 # ADV62SR
Both come with the AC unit, ADB, thermostat, and a start capacitor. A heat strip can also be added # ADV34QR. Since we're headed into summer there is a bit of a wait for these since most people have already gotten their replacements. If you have an immediate need for an AC the 13,500 Btu # ADV95SR is still available right now or you could choose an alternate system like the GE # GE95ZR. If you have any additional questions let me know in the comments below.
(click to enlarge)
Product Page this Question was Asked From
Advent Air RV Air Conditioner System - Single Zone - 15,000 Btu - White - R32
- RV Air Conditioners
- Complete AC System
- Cool Only
- 15000 Btu
- 115V
- Single Zone
- Rooftop
- Ducted
- Ductless
- White
- Advent Air
more information >
Continue Researching
- Search Results: rv air conditioners
- Shop: Advent Air RV Air Conditioner System - Single Zone - 13,500 Btu - White - R32
- Q&A: What Advent Air Conditioner Set-Up Do I Need to Replace My Dometic 13,500 BTU?
- Shop: Dometic RV LP Gas Furnace - 35,000 Btu - 12V
- Video: Review of Advent Air RV Air Conditioners - 15000 BTU White RV Air Conditioner System - ADV92SR
- Video: Review of Advent Air RV Air Conditioners - 13500 BTU White RV AC System - ADV95SR
- Search Results: rv and camper hitch
- Search Results: dometic rv furnace
- Search Results: sw12del
- Search Results: furrion chill cube
- Search Results: 5th wheel suspension
- Shop: GE Appliances Deluxe Plus RV AC System - Ducted - 15,000 Btu - White - Complete System
- Shop: Advent Air RV Air Conditioner System - Single Zone - 15,000 Btu - White - R32
- Search Results: acm135
- Shop: Correct Track Trailer Alignment and Lift Kit - Tandem Axle
- Shop: Advent Air RV Air Conditioner System - Manual - 15,000 Btu - White - R32
- Q&A: Replacement AC Recommendation for a Duo-Therm Model 57915.731
- Q&A: Replacing Airxcel AC on 2012 Durango 1500 5th Wheel
- Shop: Advent Air Low Profile RV Air Conditioner System - Single Zone - 15,000 Btu - White - R32
- Q&A: Recommended AC Unit to Replace a Older Dometic 13,500 BTU Unit
- Article: How to Choose the Best RV AC Unit (2025)
- Q&A: Recommended Replacement for a Dometic Duo Therm AC w/ Heat Pump
- Q&A: Best Replacement RV Air Conditioner for Dometic
- Q&A: Replacement AC for Old Dometic Duo-Therm
- Article: 4 Steps to Choosing Your 5th Wheel Pin Box
- Video: Complete Breakdown of the Torflex Lift Kit
- Video: Review of Advent Air RV Air Conditioners - 13500 BTU White RV AC - ADV96SR
- Video: Upgrading the A/C On Your Retro RV
- Video: Choosing the Right GE RV AC for You!
- Video: Review of GE Appliances RV Air Conditioners - 15K Btu White Deluxe Plus Ductless AC HP - GE94RR
Maurice H.
6/7/2025
Thank you sir. A couple of additional questions if I may. The Advent units will tie into my duct work correct? Also, will the new t-stat be compatible with my existing Dometic propane furnace?