. 1996 39' Terry Parkmodel. Coleman AC with non-digital therostat. Replaced AC with Dometic AC (Brisk Air II - 15k BTU). Dometic LCD thrmostat (3313189.000)All the connections from AC to control box are done.Same with connections to thermostat.Had no power when switch flipped - then saw 12v to power the thermostat. Hooked it to a motorcycle battery and got power. All ran fine. So, here's my issue...How do I run or get power to the thermostat permanently?The RV doesn't EVER move (it's in a RV community (Woodhaven - Sublette, IL.) I'm confused as to how this can get hooked up. A friend mentioned I need an Inverter? Really? Any idea's please!

Our Dometic gets power (12 volt) from a control box in the AC. It runs thru a telephone wire. You she have a dedicated 12 volt line running from your converter to the AC unit. On the internet type in the part number and you will get installing instructions.

If there isn't 12v available at the thermo, I guess you'll have to run your own wire. Or, replace with a battery-operated thermo. No, an inverter won't do that. Well-meaning friends say the funniest things.

Hopefully you have a light switch nearby so you can run a wire from it to the Tstat.

I do have a light switch right next to the thrmostat... but isn't that running 110v?---Also, are wire i'm talking about says 12v to power (or supply - I can't remember, are a few of you saying I can run this wire to the thermostat directly for power?) I'm getting sooo confused.

Lighting in MHs is almost surely 12v. Working with electricity sans a voltmeter is kinda risky.Wow, 15 years on here and still a "new" member. Don't see that every day.

Dometic Thermostat / 12v power issue... | Good Sam Community

2oldman
Explorer II
Jul 25, 2016
Lighting in MHs is almost surely 12v. Working with electricity sans a voltmeter is kinda risky.

Wow, 15 years on here and still a "new" member. Don't see that every day.
Level2
Explorer
Jul 25, 2016
I do have a light switch right next to the thrmostat... but isn't that running 110v?

---

Also, are wire i'm talking about says 12v to power (or supply - I can't remember, are a few of you saying I can run this wire to the thermostat directly for power?) I'm getting sooo confused.
Ivylog
Explorer III
Jul 25, 2016
Hopefully you have a light switch nearby so you can run a wire from it to the Tstat.
2oldman
Explorer II
Jul 25, 2016
If there isn't 12v available at the thermo, I guess you'll have to run your own wire. Or, replace with a battery-operated thermo.

No, an inverter won't do that. Well-meaning friends say the funniest things.
bgum
Explorer
Jul 25, 2016
Our Dometic gets power (12 volt) from a control box in the AC. It runs thru a telephone wire. You she have a dedicated 12 volt line running from your converter to the AC unit. On the internet type in the part number and you will get installing instructions.

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Dometic Thermostat / 12v power issue...

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