Nest Heat Link - No Light - No Response

[Phils54]

No response from the heat link unit from the boiler. No light at all.

No power outage , woke up in the morning and it had dropped off from the thermostat and has not been on since. 

No obvious signs of lose wires and definitely no damage. About 18 / 24 months old

Subsequently cannot switch the heating on ….

[AlexD]

Thanks for reaching out to us here @Phils54 . I am sorry to hear you are facing difficulties with your device and I would be happy to try and assist.

If you have not already, check the breakers and switches at the location, to make sure nothing has tripped. Also check the boiler as it can sometimes have a separate switch on it. Confirm it has power, it should have a display or LED that turns on.

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.

[DragosC]

Hi there. I'm just following up on our last message. Do you still need our help? Keep us posted.

[Phils54]

I am still operating the boiler manually. Engineer has said the Nest Link has power to it but is dead.

[george_t]

Hi @Phils54. Thanks for the details. Please tell me the following details, then I will create a case for you:

What type of Nest thermostat do you have?
Did the issue happen during installation or after installation? Was it installed by a Nest Pro or by a regular installer?
Are you seeing any wiring report or error on the thermostat and/or the app?
Have you had any recent power cuts in your area? If yes, has the power been restored?
Have you recently had service or maintenance on your electrical, plumbing, or heating system?
How many thermostats do you have?

[george_t]

Hi @Phils54. Just checking in, did you manage to check out my last message?

[AlexD]

Hey there, I haven't heard from you in a while so I'll be locking this thread. If you have any new issues, updates or just a discussion topic, feel free to start a new thread in the community. Thanks, AlexD.