topic Re: H71 error on heatlink. No lights coming on in Nest Thermostats

H71 error on heatlink. No lights coming on

Tom85 — Fri, 10 Nov 2023 12:46:47 GMT

My heat link is dead. I can't even reset as no lights come on. I'm an electrician and all power to unit and connections are fine. How do I get a new heat link?

Re: H71 error on heatlink. No lights coming on

TudorL — Sat, 11 Nov 2023 09:49:52 GMT

Hi there and thanks for reaching our community. I'm sorry to hear about your issue, but I'll do my best to assist you. I'll need to document the case a bit, so please follow the instructions and questions below:

Press the button on the Heat Link and check if you have any lights on it

Turn them off and then back on
Press on the button again and check for LEDs

How long has your thermostat been installed for?

Did the issue happen during the installation?

Is there any error on the Nest thermostat display?

Have you had any power cuts recently?

Have you had any work done on your electrical or heating systems recently?

If yes, was the power properly restored at the fuse board after work was done?
How many zones ( thermostats ) are present in the setup

Re: H71 error on heatlink. No lights coming on

Tom85 — Sat, 11 Nov 2023 10:29:49 GMT

Press the button on the Heat Link and check if you have any lights on it

Turn them off and then back on

Press on the button again and check for LEDs

No lights working

How long has your thermostat been installed for?

3+ years

Did the issue happen during the installation?

Is there any error on the Nest thermostat display?

H71

Have you had any power cuts recently?

Have you had any work done on your electrical or heating systems recently?

If yes, was the power properly restored at the fuse board after work was done?

How many zones ( thermostats ) are present in the setup

Re: H71 error on heatlink. No lights coming on

LarisaL — Mon, 13 Nov 2023 10:05:22 GMT

Hi there, thank you for the answers. Would it be okay with you if I sent you an email on the email address you have here on Community?

Re: H71 error on heatlink. No lights coming on

Tom85 — Mon, 13 Nov 2023 10:22:23 GMT

Yes please

Re: H71 error on heatlink. No lights coming on

LarisaL — Mon, 13 Nov 2023 12:28:29 GMT

I just sent you the email. Please let me know when you completed the form.

Re: H71 error on heatlink. No lights coming on

Tom85 — Tue, 14 Nov 2023 08:29:23 GMT

Hi there, I completed the form

Re: H71 error on heatlink. No lights coming on

AlexD — Tue, 14 Nov 2023 09:54:44 GMT

Awesome. I found the form. I sent you more information over email. Reply to it when you are able.

Re: H71 error on heatlink. No lights coming on

Tom85 — Tue, 14 Nov 2023 12:31:19 GMT

Just replied to that

Re: H71 error on heatlink. No lights coming on

GabboCH — Wed, 15 Nov 2023 15:36:55 GMT

Hello Tom/LarisaL, can you say what the resolution was?
I have the same problem with one of my heat-links since last week, is it possible to order a replacement rather than a complete unit with thermostat?

Re: H71 error on heatlink. No lights coming on

Vladut — Thu, 16 Nov 2023 09:23:01 GMT

Hi @GabboCH ,

Can you tell me if you press the Heat Link button for 30 seconds, does any light come on?

Re: H71 error on heatlink. No lights coming on

Vladut — Sat, 18 Nov 2023 09:24:54 GMT

Hi there, just checking in with you. Do you still need help?

Re: H71 error on heatlink. No lights coming on

GabboCH — Sat, 18 Nov 2023 11:38:36 GMT

Sorry for the slow reply.
I have just replied to one of your other colleagues in another thread I created with some details.
Nest EU Thermostat Heat Link is Dead/No Power - Google Nest Community

The reset button does nothing even if pressed for 30s.

Re: H71 error on heatlink. No lights coming on

TudorL — Sat, 18 Nov 2023 12:12:15 GMT

Hi there @Tom85, just checking if there's anything else me or my colleagues can do for you.

@GabboCH we'll continue the conversation on the thread provided by you here, if it's okay for you as well.

Re: H71 error on heatlink. No lights coming on

LarisaL — Mon, 20 Nov 2023 12:36:50 GMT

Hi there, just checking in! Have you seen the message from my colleague?

Re: H71 error on heatlink. No lights coming on

GabboCH — Mon, 20 Nov 2023 19:03:01 GMT

Yes, I already completed the support request details sent by your colleague through the other thread. Just waiting for the next steps...

Re: H71 error on heatlink. No lights coming on

AlexD — Tue, 21 Nov 2023 11:37:40 GMT

Thanks for letting us know. You should soon see an email with further details from my colleague.