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Nest Thermostats
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Forum Posts

3rd Gen heatlink failure

HiI have 2 x nest thermostats (and heat links) for each zone in my house (upstairs and downstairs) one of the heat links has completely packed up and we get the H71 warning on the thermostat.I have had an electrician in to check all the wiring just t...

MrH by Community Member
  • 388 Views
  • 7 replies
  • 0 kudos

Nest runs for too long with aquastat in place

Moved my Nest to control my 2nd floor heating zone (hyrdronic forced hot air of off a boiler) and it's behavior has changed. The aquastat is set to 160 degrees to ensure that the blower doesn't kick in until it is hot enough (eliminates cool air blow...

E74 r

E74 rh wire error. I cleaned condensation pump, still blowing cold air. Any ideas? Bad ignitor?

Nest gen 3 thermostat

Hello. My heatlink has broken down. I have checked the fuse the reset and everything else. The heatlink is dead. No light nothing. Please can you supply me with a replacement that I am willing to pay for. I bought the thermostat 2 years ago. Thank yo...

Jr1 by Community Member
  • 316 Views
  • 5 replies
  • 0 kudos

Nest heat link no power lights

Hi All,Suddenly since installation February 2020 my heat link is showing no power lights. I have checked the power and no issues . I have hit the reset button for 20 seconds and still no lights or reconnection. Error h71 on thermostat so re started a...

Scullyse by Community Member
  • 909 Views
  • 20 replies
  • 0 kudos

Heat Link gen 3 - no power, can't turn on heating

My Heat Link suddenly stopped working, can't be turned on, no power light at all. I've tried to reset it by pressing and holding a button for 10, and 20 seconds but it didn't help. I've checked wiring connections, everything seems to be like it shoul...

Nest Thermostats

I have recently bought a house. The previous owner had a Nest Thermostat 3rd gen learning which they left. Whenever I select a temperature by turning the thermostat (or on the app) the radiators do not heat up. Where it says 'in 2 hours', they still ...

Uddin90 by Community Member
  • 228 Views
  • 3 replies
  • 1 kudos

Resolved! Nest Thermostat Won't Turn On Heat

Thermostat has been working well until today. Now the heat won't come on. Did a reset, that did not help. When I adjust the temperature a green leaf shows up and says in 1.5 hours, then says until 21:00. It's -4C outside, by 21:00H my pipes will be f...