NEST HEAT LINK - suddenly stopped working, no led on the heat link

[joannamd]

Hi,

I just woke up to my boiler going crazy, and my thermostat showing the error message H72. 

I have checked heatlink and have tried to restart it, but there is no light indicating that it is actually working. It has never happened to me before, I have no idea what I should do

[Paul_R]

Hi there @joannamd ! I'm really sorry to hear about this, but I'll do my best to assist you. Could you please answer the following questions and try the troubleshooting steps?

What type of Nest Thermostat do you have?
Are you seeing any wiring report or error on the thermostat and/or the app?
Have you recently had service or maintenance on your electrical, plumbing, or heating system?
Have you tried any troubleshooting steps before contacting us?
How many zones are present in your setup?
Were there any power outages recently?

Check for all the breaker switches to be on.
Turn the breaker switches off and then on again.
 

[joannamd]

Hi @Paul_R thank you so much! I have managed to contact Nest team, and have had a replacement installed now. 

Thank you! 

[Paul_R]

I'm really glad that you managed to get in contact with our support teams and the issue was resolved. Is there anything else that I might be able to help you with?

[joannamd]

Thank you @Paul_R - everything got sorted 🙂 

[Paul_R]

Alright, in this case I'll have to close this thread. If anything else comes up, feel free to reach out again. Have a wonderful day ahead!