Thermostat 3rd gen dead

[Thermostatties]

Hi follow up to previous issue. I think another member replied and my original thread was closed.

So will post again along with answers to your questions previously 

Hi,

Heat link appears to be dead. Getting h71 error on thermostat, have no lights on heat link. But checking mains voltage, there is still mains power to the device and when trying the mini usb connection diagnostic, the lights all come on. Any advice?

This means we have no hot water or heating. Assuming a new heat link is required, a quick bit of research says this is likely a common issue??

Since this issue I had to buy a wired heatlink equivalent from Drayton for £100 odd, and now we have water and heating again.

So this should confirm that there is no issues with the boiler, the breakers, the electrical supply or any other issue bar the heatlink failing. Going by the forum this seems a common issue, it's still within it Warranty as it was bought and installed in December 2020. However I am at a point where unless I can guarantee that a new heatlink isn't going to have the same issue again in 12 month I think will be looking at other options.

I will go back to my original topic to answer other questions asked.

[Thermostatties]

What type of Nest thermostat do you have? 3rd generation
When was it installed?december 2020
Did the issue happen during installation or after installation?No

Was it installed by a Nest Pro or by a regular installer? certified electrician
Does the boiler activate when calling for heat by pressing the Heat Link's button to activate Manual Mode? No
Have you had any recent power cuts in your area? If yes, has the power been restored?No
Have you recently had service or maintenance on your electrical, plumbing, or heating system?no
Have you tried any troubleshooting steps before contacting us?yes

How many thermostats do you have? 1

As I say I have had to replace with a Drayton wired thermastat with programming so we could actually get heating and hot water as there was no other way to get it, no helpful with a 6 month old. 

the Drayton works and so again this would indicate the heat link is goosed. 

[Thermostatties]

Follow up to questions asked in last thread.

I'm sorry to hear about your issue, but I'd like to help you out. I'll have a few questions for you first:

What type of Nest thermostat do you have?3rd generation

When was it installed?december 2020

Did the issue happen during installation or after installation?no

 Was it installed by a Nest Pro or by a regular installer?certified electrician

Does the boiler activate when calling for heat by pressing the Heat Link's button to activate Manual Mode?no

Have you had any recent power cuts in your area? If yes, has the power been restored?No

Have you recently had service or maintenance on your electrical, plumbing, or heating system?No

Have you tried any troubleshooting steps before contacting us?yes

How many thermostats do you have? 1

Also, 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.

as I say I have had to place a  programmable heat link in its place and now we have hot water and heating again, so know it's nothing to do with the boiler, breakers, electrical supply etc. It can only be the heatlink.

Thank you 

[AlexD]

Thank you for all the additional information. I would like to look further into this and create a case for you. Would it be ok if I sent an email to the one associated with your account here? 

[Thermostatties]

Yea that would be fine Alex thank you

I still have all the old unit etc in the house

[AlexD]

Ok. I just sent you an email. Just reply to it once you have it and fill out the form in it. 

[AndaD]

Hi there

I was passing by and wanted to see if you managed to fill in the form my colleague sent. Let me know if you need any guidance. 

[DragosC]

Since I haven't heard from you in a while, I'll have to close this thread. Should anything else come up, please open another thread and we'll take it from there. Have a good one and stay safe! 
 

[AlexD]

THank you for all the information @Thermostatties . I would be happy to try and assist. 

I am happy to hear you already got to check the power and confirmed everything is ok with the system using another unit. 

Should you wish we can check a few things and perhaps set up a replacement for your old unit. Do you still have it at the location?