Failed 3rd generation Nest heat link

[Mike71a]

Hi, I have been using my Nest 3rd generation learning thermostat for approximately 15 months, but yesterday the boiler stopped working for no apparent reason. I checked the nest thermostat which displayed a communication error with the heat link. I checked the heat link which is powered from the boiler electrics and there were no light showing. I investigated further and there was a power supply to the unit but no lights were showing on the link.

I tried to reset by repowering and also manual reset plus switch over to manual control but all was dead. It appears that the heat link has failed like so many others.

I am expecting a replacement and need to know what the procedure is to claim under warranty.

rgds

Mike

[Frustratedddd]

Best way just ring Nest, much quicker than waiting for an answer here.

[DragosC]

Hi there @Mike71a

Since you haven't replied to our message, I'll have to close this thread. 

Should anything else come up, please open a new thread.

Have a great day ahead and stay safe!
 

[george_t]

Hey @Mike71a,

Do you still need help?

If you do, please answer the following questions:

1. What type of Nest thermostat do you have?
2. When was it installed?
3. Did the issue happen during installation or after installation? Was it installed by a Nest Pro or by a regular installer?
4. Are there any lights on the Heat Link? Does the boiler activate when calling for heat by pressing the Heat Link's button to activate Manual Mode?
5. Have you had any recent power cuts in your area? If yes, has the power been restored?
6. Have you recently had service or maintenance on your electrical, plumbing, or heating system?
7. Have you tried any troubleshooting steps before contacting us?