NEST thermostat stopped working

[gab2]

Hi,

my NEST stopped working. First, the thermostat showe error H72 with no led light on the heatlink. Now, the thermostat is completely off. I reported the problem  filling out the form as advised in the forum. No answer yet! Still cannot use my heating. 
Please HELP!

Thanks 

[Mick7]

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@gab2 wrote:

Hi,   mcdvoice

my NEST stopped working. First, the thermostat showe error H72 with no led light on the heatlink. Now, the thermostat is completely off. I reported the problem  filling out the form as advised in the forum. No answer yet! Still cannot use my heating. 
Please HELP!

Thanks 

---

Hello,

If your NEST thermostat has stopped working and displayed an H72 error with no LED light on the heatlink, followed by complete shutdown, you've taken the right step by reporting the issue through the provided form.

While awaiting a response, try some initial troubleshooting steps.

Check the power source; ensure it's receiving power and securely connected. Reset the thermostat by holding the display for 10 seconds, then release and restart it. Additionally, inspect the heatlink's wiring for loose connections.

If these steps don't resolve the issue, remain patient for the support team's response, and consider alternative heating methods to stay comfortable while waiting for a solution.

[AlexD]

Hi @gab2 , thanks for reaching out here. I'm sorry to hear you are facing difficulties with your thermostat and I would be happy to try and assist. 

Let us check a few details to get a better idea of the situation: 

1. When was the thermostat installed?
2. When did you first notice this behaviour?
3. Was it installed by a Nest Pro or by a heating/electrical engineer?
4. Did you notice any power cut in the area before this occurred?
5. Did you have any maintenance done on the heating or electrical system recently? 
6. Do you have only one or multiple Google Nest thermostat devices at the location?

Also make sure to check out @Mick7 suggestion, thanks for the input, make sure to check the power at the location to make sure nothing has tripped. If it all looks good try and power cycle the Heat Link, if you're comfortable in doing so. Turn the power to the Heat Link off for a few minutes and then turn it back on. See if it has any reaction after, when you press the button on it.

[gab2]

Hi Alex,

thanks for answering

1. It was installed in September/October 2020
2. I noticed it on 30/08/2023
3. heating/electrical engineer
4. Not lately

 5. Not lately 
6. Only 1 ( this with issues)

Thanks 

Gabriele 

[Vladut]

Hello @gab2 , thank you so much for all the details. Did you also try to power cycle the Heat Link as advised by my colleague?

[Vladut]

Hi there, do you still need help?

[gab2]

Hi,

 I have just done the  power cycle on the heat link as suggested.  Nothing happened. Still need help.

Thanks 

Gabriele

[Paul_R]

Thanks for confirming. Is it ok if I send you an email with a form, in order to create a case in out system? You'll have to complete the form, and let us know afterwards that it is submitted.

[gab2]

Hi Paul,

I have already submitted a form two weeks ago. 

Thanks 

Gabriele 

[TudorL]

Thanks for letting me know. It seems that the form didn't come through, though. Would it be okay for you to complete a second one? 

[gab2]

Yes can do. 

Thanks 

Gabriele 

[gab2]

Can you please send it to my email.

Thanks 

Gabriele 

[LarisaL]

Hi there. I just sent you the form via email. Please let us know once you've complete it.

[UanaC]

Hello there! Just checking, did you receive my colleague's email?

[gab2]

Hi there,

Sorry for slow reply but I have bene out if the country.

I received the email and just submitted the form.

thanks and Regards 

Gabriele 

[AlexD]

No worries. I found the form and sent an email your way for a bit more information. Let me know here once you received and reply to it. 

[TudorL]

Hi there, did you manage to check the email sent by my colleague? 

[UanaC]

If you have any new issues, updates or just a discussion topic, feel free to start a new thread in the community. Thanks, Uana.