Temporary Gas Lockout

[HHPJ]

Greetings Airstreamers:

I have the Dometic RM3762 refrigerator in my 2017 25a FC.
A curious paragraph in the owners manual states there is a temporary gas lockout that can be activated when you turn the engine off. This lockout will last for 15 minutes. It says you have to “energize” this feature and then refers me to see insulation instructions on how to energize. It states that this feature will prevent LP gas operation when refueling at a refueling station.

However, I cannot find in the manual any other reference to this feature or how to energize this feature, or if it’s on or off.

Any experience with this feature would be appreciated.
As a disclaimer: I am not intending to drive with LP on, just learning about this obscure feature.

[SSquared]

This feature is mainly for motorhomes, especially if the fridge is close to the fuel filler door. I don't think Airstream has ever implemented the function in a trailer.

The feature works by having an extra electrical connection that is switched on and off by the vehicle ignition. In a motorhome, it is straightforward to run a wire for that purpose when the vehicle is outfitted.

With a trailer, the standard umbilical cord does not have a wire for this purpose. You'd have to run an extra wire, change to a different connector for the umbilical, or, if your trailer lacks back-up lights, rewire that line to be the switched line. Then you would have to run the wire through the trailer to the fridge.

I have considered a different approach, which would be to install a jumper inside the fridge compartment, connecting the regular 12V to the terminal for the switched line, plus a switch. Then the function could be activated by hand. That would be easier than what we do now when we travel with the fridge running on propane, which is to turn off the fridge from inside.

By the way, we often travel with the fridge on 120V power from our inverter and 435 watts of solar power.

[HHPJ]

Thanks for the information. Makes sense. Sounds like you have a nice setup.

I am thinking of purchasing the Dometic CFX 45 portable frig/freezer which can run on 12v or 120...about the size of an average ice cooler without the ice... keep in back seat of TV while driving to keep food/drinks cold while on the road. And then transfer when at destination.