What is this switch for?

[NoahsArk]

Hi everyone,

Can someone please tell me what this circular switch below my genset remote start is for? I have a 2010 Airstream Interstate. Thanks!

[avanti]

Dunno. But, in my 2005 Interstate, the unlabeled switch was the tank heater, for use in freezing weather. The other common candidate is the porch light.

[NoahsArk]

The tank heaters and porch light both have labeled switches. I don’t see anything in the manual about it, so I’m guessing a previous owner added it. I just thought I might have seen pictures of control panels in other Interstates with the same switch.

[rowiebowie]

Originally Posted by NoahsArk

The tank heaters and porch light both have labeled switches. I don’t see anything in the manual about it, so I’m guessing a previous owner added it. I just thought I might have seen pictures of control panels in other Interstates with the same switch.

I have a '2012 Airstream Avenue and no where is a switch like that unless I installed after I bought it used. You'll likely have to find out what the switch does through experimentation since it looks like and aftermarket installed by the previous owner. Just my guess.