10-02-2021 06:52 AM
Hi, my thermostat is showing h72 error and says no power. The heat link is showing no lights either, I have tried to press the button and hold down etc but nothing happens, appears completely dead? Can a replacement heat link be sourced??
10-29-2021 07:14 AM
Hello @Lee2021,
Thanks for reaching out. I'll do my best to get this sorted for you as soon as possible.
Here are some helpful troubleshooting steps:
Press the button on the Heat Link and check if you have any lights on it
Check if the circuit breakers and the switches are set to on
Turn them off and then back on
Press on the button again and check for LEDs
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 are present in the setup?
Regards,
Cristian
11-01-2021 05:36 AM
Hello again. Just checking in. Do you still need my help?
11-01-2021 05:50 AM
Hi yes thank you for getting back to me, I have tried all your options but none have worked. No lights are on the heat link but power definitely going to it as electrician has checked. Require a replacement unit. Many thanks
11-01-2021 06:01 AM
Hey @Lee2021. Can you also send a reply with answers to the questions I posted earlier? Once I have them, I'll send you an email so we can open a case for you.
11-03-2021 06:03 AM
Hey there. Just checking in. Do you still need my help?
11-05-2021 06:05 AM
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.