AC controls for Georgetown GT7

Jackey · 07-31-2020, 04:40 PM

We have recently bought a new Georgetown rv and the temp sensors for the two ac's appear to be reversed. Anyone know where the sensor wires terminate? I think they may just need to be swapped. Forgive if too wordy, this my first post.

Iggy · 07-31-2020, 05:21 PM

You have 2 hot 12 volt wires to the thermostat
You have 2 control wires to the AC control box just below the AC in the ceiling.

Why do you think wires are wrong? Are you a control specialist or electrician?

Explain in full.
What is the thermostat set at?
Is the fan set to Auto?
You do have two thermoistats or do you have the tablet and or the cell phone app?

Jackey · 07-31-2020, 06:40 PM

Yes, I am a retired electrician. I have a Precision circuits control panel that monitors and controls the 2 ac's along with most everything else on the RV. the display for the bedroom ac shows the temp in the living room and the display for the LR ac shows the temp in the bedroom. These temp readings also control the ac's function. Thus our first trip with another couple who prefer warmer sleeping temps than we do had our BR ac never running once the LR temp got down to our set point so we were hot. The LR ac never went off because it was warm in the BR.

Iggy · 07-31-2020, 07:21 PM

I would think it was a tablet being programmed wrong and not the AC units themselves.
Call the manufacturer of the Tablet system as I have been told they are very helpful and may help you reporgram the tablet or at least veryify it actually hard wired wrong.
Still under warranty you can also take it back to the dealer.

Jackey · 07-31-2020, 07:24 PM

OK, Thanks Iggy. I will check that out.

NXR · 07-31-2020, 07:51 PM

I'm not a fan of that system for the A/C's and heat pumps. On our 2020 we have real thermostats but on the 2020.5's the thermostats were removed and replaced with little black rectangular "boxes", which are the temperature sensors. When I saw one I tried pushing on it because I thought it was some kind of switch since it's stuck in the middle of the wall.

Not only does the Precision Plex generator autostart still not work for "the temperature is high inside", right now I can use the little infrared remote while lying in bed to adjust the temperature by feel. With the new system I'd have to drag out my phone and get blinded by the screen. Definitely a "Just because you can does not mean you should" to me.

Anyway, there's a lot of the wiring behind the touchscreen. Maybe you can chase the wires that way. On the side of each corner of the touchscreen you'll see a tiny slot. You can use a small screwdriver to pry each corner off. Behind each corner is one of those square-headed screws. Remove the screws and you'll see a real rat's nest. And the TV splitter and Bluetooth module for the Precision Plex system on mine.

There is a data cable plugged into the back of the touchscreen but there are two sockets (at least on mine). Take a picture so you will know which socket the cable goes in should you decide to unplug the touchscreen to set it aside.

HTH,

Ray

NXR · 07-31-2020, 07:54 PM

Quote:

Originally Posted by Jackey

We have recently bought a new Georgetown rv ...

Please consider clicking on User CP on the light green bar near the top on the left. Then scroll down to Edit Signature and enter in your model year, model, and floorplan number. That will help people give you better answers based on your exact model.

Ray

Jackey · 08-01-2020, 03:04 PM

Thanks, will do.

Jackey · 08-01-2020, 03:07 PM

test for signature

NXR · 08-01-2020, 03:28 PM

i doubt you'll find anything useful here but give it a shot.

On the touchscreen tap the Settings gear in the upper left corner. On that screen tap the word at the very top of the screen in the center.

That opens other, hidden screens. You can keep tapping around, usually whatever word is at the top center, and see different things and set a few parameters, such as your RV model. Some of the screens are non-functional on mine, such as the generator and load-shedding screens.

At least that's how the touchscreen works on the GT5. I've never tried this on a GT7 but maybe at the next RV show.

Ray

NXR · 08-01-2020, 05:17 PM

Quote:

Originally Posted by Jackey

test for signature

Looks good. Note that if you use the mobile app there is no way to set a signature and the one you set from a browser does not work with the mobile app.

Ray

Jackey · 08-04-2020, 02:46 PM

I contacted Precision Circuits Tech and they were able to tell me where the temp sensor wires landed on the back of the controller touch pad. They were easy to just unplug and swap. took 5 minutes and it is fixed. Thanks for all those that helped.

Iggy · 08-04-2020, 02:55 PM

Quote:

Originally Posted by Jackey

I contacted Precision Circuits Tech and they were able to tell me where the temp sensor wires landed on the back of the controller touch pad. They were easy to just unplug and swap. took 5 minutes and it is fixed. Thanks for all those that helped.

So this has been this way since you got the rig.

Wrong temp sensor hooke dup to the AC's

Glad they figured it out.

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