What is this red box?

[Meadows11]

What is the purpose of this red box? I have a 2018 Jayco 25 BH.

 

[dora-XRD]

I'm thinking you forgot to post the picture of your red box or if you don't have one can you describe what it looks like and where it's located. If it's on the trailers tongue somewhere you may be seeing the waterproof covering for a thermal breaker though just guessing without more information.

 

[ClarkeNorman]

You might also have a resettable circuit breaker like this one. If so and it's open, you just slide the red lever back into position to reset the breaker.

Safe Travels!