Heatlink no longer works

[rgaila]

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Original Poster: David Stephenson 2952  

Nest thermostat gen 3.

Came in from work today, thermostat is displaying error H71.

Checked heatlink no lights are displayed, held button for 10 seconds no lights still displayed, held button again for another 30 seconds no lights still being displayed.

Wiring from mains is on, all breakers are switched on, power is coming to fused switch which powers gas boiler and heatlink, red neon is lit up so fuse has not blown, boiler has power but cannot be fired up.

Switched boiler main switch off for 5 mins and turned back on, heatlink still does not turn on or light up with any lights.

Removed faceplate to heatlink, tested main electrical wires for voltage, tested working okay at 230v, ground wire tested for continuity and tested working okay.

Thermostat has never been wired to heatlink via T1/T2, always been mains powered via wall plug.

Thermostat and heatsink have been installed since March 2020 without any issues until now.

Previously installed water/heater timer including mechanical thermostat never failed once in 18 years, I am disappointed that a product as important as the water/heating switch in the home has failed like this.

What am I supposed to do with this now, is this covered under the warranty, as this is clearly a manufacturing defect and seeing as I have read it has been happening to other users of the product?

[Vladut]

Hi there, thank you so much for reaching out. We'd love to investigate this further — please fill out this form so we can gather your details securely and let us know once you've done it: https://bit.ly/3h2TDJp. You can find the Serial Number in Settings > Tech Info > Display, or on the back of it. It begins with 09. Also, the email address included should be linked to your Nest Account, and for the postal address section, input a shipping address.

[CristianC]

Hello again,

Just checking in. Did you manage to fill out the form?

Regards,
Cristian

[Stephensond44]

Hello thank you for the reply,

I didn't know what to do, so I returned to the original retailer who I purchased it from (Currys) and they were able to confirm that the device was still within the warranty period and they would be able to do a straight swap for a new one.

This was a good solution, however this did mean I had to completely uninstall the original unit and take all the components back to the store.

I returned to the store the same day after the first visit and they didn't have any in stock, annoying they didn't tell me this earlier when I told them I was going to uninstall and return, then sent on a 56 mile round trip to the next nearest store that had stock.

New unit was successfully installed and all my previous settings loaded onto the device, which I was delighted I didn't have to setup all my previous timed on/off intervals.

Nest has been working since with no faults.

Thank you

[CristianC]

Hi Stephensond44,

 

I'm happy to hear that you've got this resolved. Sounds like it was a long drive. I will close this thread, but should anything come up, feel free to open a new one.


Regards,
Cristian