Replacement Options For A Dometic RV Air Conditioner Model # 57915.541

Updated 05/12/2025 | Published 05/27/2023

Question:

Need to replace Dometic model 57915541 serial 64141816 2 speed thermostat hi and low what will work best

asked by: John R

Expert Reply:

If you're wanting to replace just the rooftop unit then you'll first want to remove the cover of your air distribution box to take a look at the controller. The controller will have a wire harness that hangs down from the rooftop unit and plugs into it with either a 6-pin or 9-pin connector (pictured below).

If you have a 6-pin connector then the Advent Air Replacement RV Air Conditioner # ACDOM150 would be a direct swap out of your current rooftop unit. If you have a 9-pin connector then you'll just need to use a wiring harness adapter like the # ACCOLKIT as well.

If you're looking to completely replace the entire system then I recommend going with the Furrion Chill HE RV Air Conditioner System # FR55PV instead. This will give you a new air distribution box and thermostat as well and you wouldn't have to worry about any compatibility issues since it would be all new equipment.

expert reply by: Kevin C

6 and 9 Pin Connectors
(click to enlarge)

Angie

5/1/2025

So does this mean that the ACM150 is also a direct swap for our existing and failing Model # 57915.541 (duo therm)? It appears to be the same as the acdom150 except without the start capacitor. A prior chat said the acm150 won't work with the duo therm.

Jesse M.

5/12/2025

@Angie The ACM150 is not a suitable replacement for a Duo-Therm. Even if they have the same 6-pin plug there is no guarantee the AC unit would correctly intercommunicate with your controller and thermostat. It can work in some cases, but we have been seeing a TON of issues with compatibility recently. The best bet is to replace the whole AC system.