I was able to disconnect the wall unit and charge that with the USB. So, I'm getting the display now. But it's still

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Jul 3, 2024
7:58:40am

Chemish All-American

sing E74: no power to RH wire. The RH wire seems to be connected fine, however.

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Chemish

Previous username: date
Bio page: Chemish
Joined: Jul 23, 2003
Last login: Jul 5, 2024
Total posts: 9,664 (171 FO)

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Messages

Author

Time

Need help troubleshooting my Nest thermostat not working. In the app it says "can't connect to wifi since it isn't

Chemish All-American

Jul 3, 4:42am

GFI outlet or breaker?

WDaddy

Jul 3, 4:47am

No breaker switches are flipped. I flipped the AC breaker off and on just to see if that would do anything. It didn't.

Chemish

Jul 3, 5:04am

Do you have your old thermostats stashed in a drawer? Maybe reattach those and see if you can get it to work. Stop gap

WDaddy

Jul 3, 5:13am

I'm pretty sure we do. Whether I'll be able to figure out how to reconnect it is another story.

Chemish

Jul 3, 5:22am

Can you disconnect the thermostat to restart them?

SWKTNative

Jul 3, 4:55am

You can pull them off the wall. The wires seem to be connected fine. But it would be weird if both thermostats had wire

Chemish

Jul 3, 5:09am

I agree. I'm just thinking maybe a restart to both devices would help flush out

SWKTNative

Jul 3, 6:07am

You can charge them via usb. They should be getting power from the furnace but it’s a vampire charge not a dedicated

LaserCoug

Jul 3, 5:56am

This is the correct answer. I’ve had this happen

DavisCoCoug

Jul 3, 7:38am

I was able to disconnect the wall unit and charge that with the USB. So, I'm getting the display now. But it's still

Chemish

Jul 3, 7:58am

Charge the head unit fully with USB

DavisCoCoug

Jul 3, 8:25am

Check the fuse on the furnace.

byubryce

Jul 3, 5:57am

I went up to the attic to check the furnace. I'm sure there must be a fuse there but I certainly couldn't find it.

Chemish

Jul 3, 6:53am

Take off the panel. It’s a small rectangle with a number on it. Most like 5.

byubryce

Jul 3, 8:01am

Question - what happens to your HVAC operations when you lose internet service?

Acorn

Jul 3, 6:48am

They've always continued to work even if we lose internet

Chemish

Jul 3, 6:51am

So the internet connection is more about making changes than operating?

Acorn

Jul 3, 6:54am

Yes

ryebrye

Jul 3, 6:55am

Are the thermostats connected to separate HVAC/furnish units?

oilman

Jul 3, 7:25am

I've seen two thermostats on one unit before. Usually the second thermostat controls a damper to let air through that

WDaddy

Jul 3, 7:53am

I need this to force more air into the master bedroom at night.

oilman

Jul 3, 10:50am

Yeah, it's one AC unit but it's split for upstairs and downstairs

Chemish

Jul 3, 11:01am

Ended up being a loose wire in a panel board in the attic. So, $79 later is running again.

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