topic H71 error Nest 3rd Generation - no lights on heat link in Nest Thermostats

H71 error Nest 3rd Generation - no lights on heat link

jamesthorn — Mon, 25 Apr 2022 09:41:43 GMT

H71 error appeared Friday morning.

There are no LEDs showing on the Heatlink. I have tried holding the Nest button and disconnected power but neither helps. It looks as though the Heatlink is dead. No heating as a result. Product purchased March 2020. It appears this is a common issue... please help!

Re: H71 error Nest 3rd Generation - no lights on heat link

jamesthorn — Tue, 26 Apr 2022 10:41:14 GMT

@DragosC

Re: H71 error Nest 3rd Generation - no lights on heat link

AnaM — Wed, 27 Apr 2022 11:54:28 GMT

Hey @jamesthorn,

I'm sorry to hear about this as I know how frustrating being left without heating is. I'd like to help you out with this and I'll kindly ask you to answer the following questions:

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?
Does the boiler activate when calling for heat by pressing the Heat Link's button to activate Manual Mode?
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?
Have you tried any troubleshooting steps before contacting us?
How many thermostats do you have?

Re: H71 error Nest 3rd Generation - no lights on heat link

DragosC — Sun, 01 May 2022 08:55:41 GMT

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

Re: H71 error Nest 3rd Generation - no lights on heat link

george_t — Tue, 03 May 2022 11:27:37 GMT

It's been a while since this thread was last updated so I'll go ahead and lock this thread. If you're still experiencing problems, please feel free to start a new thread and we'll be happy to help.