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Old 07-24-2020, 06:00 PM   #1
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Beemerman's Avatar
2020 Interstate 19
Pensacola , Florida
Join Date: Feb 2019
Posts: 91
Question LP switch move: 19’ TB

Lookin’ for where folks have moved the LP switch to, and routing/pass thru......tried searching for this thread, no luck.......I know it’s here somewhere....
‘20 IS 19’ TB, 2wd
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Old 07-26-2020, 05:11 AM   #2
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2007 Interstate
League City , Texas
Join Date: Oct 2014
Posts: 6,127
I don't have the same model of Interstate as you, so I cannot offer specifics, but I can bump your question by saying that the time and effort to add another propane switch is well worth it.

We did not move our switch - we actually have two. We retained the inconvenient external switch which is adjacent to the fill port. This is because tank fillers and passenger ferry loaders need to verify personally that our propane is off. They need to put eyes on it.

We added a second switch inside on our master electrical panel. Wish we'd done it years ago, for the convenience.
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Old 07-26-2020, 07:54 AM   #3
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1992 29' Excella
2010 22' Interstate
Van By The River , Georgia
Join Date: Feb 2002
Posts: 2,318
When we purchased our used Interstate, installing an interior propane switch was one of the first upgrades we made. I can't imagine why Airstream continues to avoid addressing this issue. AIRSTREAM - ARE YOU LISTENING!!!!????

There are several discussions that cover the installation of an interior switch for the propane solenoid. Some of them more helpful than others. I don't think any of them refer specifically to a 19' Interstate. Study the three threads shown below - in particular, look at post #12 in the third thread. I used the PDF file referenced there, as a guide, to add an interior switch for our propane solenoid. Our layout was very similar to that shown in the PDF file although there were several differences in our layout. You will need to adapt to your 19'.

I basically went to the outside switch and added additional wires in series. Routed the wires to the inside and put the new switch in the same panel as the other electronic monitors. Both switches must be on for the propane to flow. I simply leave the outside switch on all the time and turn the propane on/off from the inside. The interior switch has an LED to remind me when the solenoid is on. The exterior switch remains useful when refilling the tank.
Lucius and Danielle
1992 29' Excella Classic / 2010 Interstate
2005 Chevrolet Suburban K2500 8.1L
2018 GMC Sierra K1500 SLT, 6.2L, Max Trailering
Got a cooped-up feeling, gotta get out of town, got those Airstream campin' blues...
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Old 07-27-2020, 05:19 AM   #4
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2020 Interstate 19
Pensacola , Florida
Join Date: Feb 2019
Posts: 91
Great info.....thanks !!!!
‘20 IS 19’ TB, 2wd
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