Heat link replacement

[IanM2]

Hi Woke up this morning to no heating. Thermostat showing error H71 checked heat link and no lights on turned boiler & heat link off and back on and still no lights on heat link.

Checked voltage on heat link receiving 240v so appears heat link needs replacing, seems to be a common problem. Had a look online but can't find anywhere to get one. Anyone had any luck.

Thanks

Ian

[AnaM]

Hey @IanM2.

I'm sorry to hear this issue has occurred, but I'm here to help if you still need it. 

If you have not already make sure to double check all breakers and switches to make sure nothing has tripped. Also check the boiler as it can have a separate isolation switch sometimes. Confirm the boiler has power, it should have a LED or display 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 off to the Heat Link for a few minutes and then turn it back on. See if it has any reaction when you press the button on it after.

[IanM2]

Hi AnaM

The boiler is working its a combi boiler and we have hot water there is power going to the heat link. I have checked this with a multi meter. The only other connections are to terminals 2 and 3 witch is the swith to make the heating work. I have wired these into a separate switch and the heating works so it's definitely the heat link that is not working. 

Regards

Ian

[CristianC]

Hey @IanM2. Thanks for the details. Could you also help me with some answers to these questions?

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

[IanM2]

Hi Cristian

How long has your thermostat been installed for?

Just over 2 years

Did the issue happen during the installation?

No

Is there any error on the Nest thermostat display?

Yes H71

Have you had any power cuts recently?

No

Have you had any work done on your electrical or heating systems recently?

No

If yes, was the power properly restored at the fuse board after work was done?
How many zones ( thermostats ) are present in the setup?

1

[AnaM]

Hey @IanM2,

Thank you for your answers. I'd like to create a case for you. Is it alright if I send you an email to the email address showing on your Community profile?

[IanM2]

Hi AnaM

Yes that's fine

Regards

Ian

[AlexD]

Hi, I sent an email your way. Reply to it when you are able and I can take it from there. Thanks.

[AlexD]

Hi, just wanted to let you know that I got your reply and sent you further information. Check when you are able and we'll continue there. 

[IanM2]

Hi AlexD

I have done as requested on email

Thanks

Ian

[AnaM]

Hey @IanM2,

I've just sent you a reply to your email, please check your inbox.

[AlexD]

Hi, I wanted to check in. I see you have been in touch over email with my colleagues. Anything else I can try and assist you with? 

[CristianC]

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.