Nest thermostat 3rd Gen Heat Link problem

[Andy5]

Hi, seems I have a heatlink that has died. I have have a 2 zone system each with a nest thermostat. This evening my upstairs thermostat said it needed to shut down as its internal battery is almost dead. I thought that was strange so checked the heat link and can see no power light is on at all (the other heat link for downstairs is fine and green). The thermostat is now off and flashing a red light at the top, is it safe to say I need a new heat link or is there anything I can try?

thanks

Andy

[NicoD]

I have the same problem as Andy5. 
My "heatlink S/N 09" is dead. No lights. I have checked the input voltage and it is Ok (220 V). 
No circuit breaker problem. I tried the restart procedure ... no light.
And my device is no longer under warranty since September 2021 .... no luck ... 
Can you tell me how it is possible to have one as a replacement? Sorry for the mistakes (I'm French).

[Andy5]

Just to update you, called google and yes it just a dead heat link and they have sent me a new one. 

[AnaM]

Hey @Andy5,

I'm glad to hear you've got it sorted. Let me know if you need anything else.

Hey @NicoD,

I'd be happy to help you out. Here are some helpful troubleshooting steps:

• Press the button on the Heat Link and check if you have any lights on it
• Check if the circuit breakers and the switches are set to on
• Turn them off and then back on
• Press on the button again and check for LEDs

Could you also help me with some answers to these questions?

1. How long has your thermostat been installed for?
2. Did the issue happen during the installation?
3. Is there any error on the Nest thermostat display?
4. Have you had any power cuts recently?
5. Have you had any work done on your electrical or heating systems recently?
6. If yes, was the power properly restored at the fuse board after work was done?
7. How many zones ( thermostats ) are present in the setup?

[NicoD]

Hello @AnaM,

Il calledI Google on Friday and it was agreed to send new HeatLink to replace the defective one. The package is on its way....

Here are the answers to your questions :

1. How long has your thermostat been installed for? 2 years and 2 months
2. Did the issue happen during the installation? No problem during installation. No problem since installation. 
3. Is there any error on the Nest thermostat display? Yes a message indicating that the HeatLink is cannot be reached
4. Have you had any power cuts recently? Any
5. Have you had any work done on your electrical or heating systems recently? No
6. If yes, was the power properly restored at the fuse board after work was done? --
7. How many zones ( thermostats ) are present in the setup? 1

[AnaM]

Hey @NicoD,

Thank you for your answers. I'm happy to hear you've got it sorted. Let me know if I can do anything else for you.

[AnaM]

Hey there, since you haven't replied yet and your issue is now resolved, I'll lock this thread. Feel free to open a new one if there's anything else you need.