topic Re: Unable to link new thermostat to existing heat link in Nest Thermostats

Unable to link new thermostat to existing heat link

sleepingdog — Fri, 24 Nov 2023 22:57:22 GMT

I have had to replace a faulty learning thermostat with a new one. I cannot get it to connect to the existing heat link. I’ve tried everything, the thermostat is next to the heat link and I’ve also inputted the pairing code but it will not connect. Help…

Re: Unable to link new thermostat to existing heat link

Charlie234 — Sat, 25 Nov 2023 03:01:33 GMT

So I need to change both thermostat too the same one

Re: Unable to link new thermostat to existing heat link

sleepingdog — Sat, 25 Nov 2023 07:32:21 GMT

Sorry, I’m not sure I understand what you mean?

Re: Unable to link new thermostat to existing heat link

Vladut — Sat, 25 Nov 2023 10:49:18 GMT

Hi @sleepingdog @Charlie234 ,

Thank you so much for reaching out! Can you please try these steps:

Turn off the WiFi router.

1. Reset the Heat Link by keeping the button on it pressed for 30 seconds until the LED goes slowly pulsing blue.
2. Take the thermostat off the base and give it a restart, off the base by holding the display and the back of the thermostat pressed for 10-12 seconds. (Hamburger reset)
3. While the thermostat is restarting, do not put it back on the base yet, but instead, reset the Heat Link again just like before.
4. After the Heat Link is reset, put the thermostat back on the base when it asks you to do so on the screen.
5. Go to: Replace Heat Link (underneath the H71 error code) and enter the 6 character entry key from the Heat Link, but do not connect just yet.
6. Restart the Heat Link twice (1 restart is a 10 seconds press, until the LED goes off once).
7. Press connect on the display.

Re: Unable to link new thermostat to existing heat link

Vladut — Mon, 27 Nov 2023 10:49:46 GMT

Hi there, just checking in with you. Did you manage to check the above steps?

Re: Unable to link new thermostat to existing heat link

sleepingdog — Mon, 27 Nov 2023 11:49:20 GMT

I’m afraid none of those steps work. I have wired the thermostat to the heat link for the moment until I get a replacement heat link fitted. Thanks

Re: Unable to link new thermostat to existing heat link

LarisaL — Mon, 27 Nov 2023 15:15:21 GMT

You can try to take the cover off the Heat Link and enter the key from inside the Heat Link.

Re: Unable to link new thermostat to existing heat link

sleepingdog — Mon, 27 Nov 2023 15:30:55 GMT

I have already tried that several times

Re: Unable to link new thermostat to existing heat link

LarisaL — Mon, 27 Nov 2023 16:48:08 GMT

Could you please access Settings > Tech info > Power on the display and let me know the Battery, VIN and VUSB values?

Re: Unable to link new thermostat to existing heat link

sleepingdog — Mon, 27 Nov 2023 17:25:21 GMT

Battery 3.854v

Vusb 0.02v -it is currently wired to heat link

Vin11.16v

Re: Unable to link new thermostat to existing heat link

AlexD — Tue, 28 Nov 2023 13:49:11 GMT

That would be the readings expected when connected using a wired connection. You can try and go to Settings> Equipment> Heat Link and see if you can establish the wireless connection while also connected over the wired connection using the Replace Heat Link option.

Re: Unable to link new thermostat to existing heat link

AlexD — Fri, 01 Dec 2023 15:37:33 GMT

Hi, I wanted to check in. How's it going with your device? Keep me posted.

Re: Unable to link new thermostat to existing heat link

sleepingdog — Fri, 01 Dec 2023 16:55:48 GMT

I have had to order a new heatlink to them hopefully connect wirelessly

Re: Unable to link new thermostat to existing heat link

Vladut — Sun, 03 Dec 2023 12:19:12 GMT

Oh okay. Please let me know how it goes.

Re: Unable to link new thermostat to existing heat link

LarisaL — Tue, 05 Dec 2023 12:46:42 GMT

Hi there, just checking in! Do you have an update?