My heat link appears to have broken. It has no lights on and pressing the reset button doesn’t do anything. I contacted the company who supplied and fitted the thermostat however they referred me to contact Nest. I tried to use online chat but it wasn’t available. Tried to request a callback, also not available. 1 - how do I get a replacement heat link? Is this likely to be covered by a warranty? I purchased in November 2021. 2 - if I can get a replacement, does it require a professional to fit it? Thank goodness this did not happen in winter!
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Assuming you are in the UK, you did the correct thing to start off.
The retailer is responsible for the repair/replacement NOT Nest!! More so when the unit is about 6 months old.
Go back to the company that supplied the unit, and tell them you want it repaired or replaced.
That way you use UK consumer law, and that covers you for a lot longer than Nest 2 year warranty. Do NOT get fobbed of by the retailer, demand they get the problem sorted.
I'm sorry to hear about your issue, and if you still need help, I'll be happy to assist.
If that's the case, please answer the following questions:
Hi, I have 3rd generation learning thermostat. This issue has occurred 18 months after installation. It was installed by a nest pro. The heat link has no lights on. The boiler has power and is on however does not activate when I press the button on the heat link. The error on the thermostat says the power to this thermostat is off and gives error code h72. There have been no recent power cuts or maintenance. I have checked that the socket the heat link is attached to is working - it is. I have switched all my power off and back on. I have no blown fuses.
Thank you for your answers.
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.