cancel
Showing results for 
Search instead for 
Did you mean: 

Heat link Dead

Goldleader
Community Member

Hi There - I’m getting error message H71 - but heat link is dead - no lights and unable to reset. Have had no power/electrical/heating issues or work done. The set up has been working fine for the past 2 years and I have no idea what has happened. Power to the boiler is fine - and have hot water. 

4 REPLIES 4

AP1
Community Member

I'm having exactly the same issue as described above. No lights on heat link so can’t reset or override and switch to manual heating. Reading various posts this is a known issue. So how can we fix this sharpish ? It’s freezing.

AlexD
Community Specialist
Community Specialist

Hi @Goldleader and @Diana128 . I am sorry to hear you both are experiencing the same behavior from your device. If you have not already, check the breakers and switches at the location, to make sure nothing has tripped. Also check the boiler as it can sometimes have a separate switch on it. Confirm it has power, it should have a display or LED 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 to the Heat Link off for a few minutes and then turn it back on. See if it has any reaction after when you press the button on it.

 

If after power the power cycle it still has no reaction, also answer these questions:

 

1. When was the thermostat installed?
2. When did you first notice this behavior?
3. Was it installed by a Nest Pro or by a heating/electrical engineer?
4. Did you notice any message on the thermostat display?
5. Did you notice any power cut in the area before this occurred?
6. Did you have any maintenance done on the heating or electrical system recently?
7. Do you have only one or multiple Google Nest thermostat devices at the location?

DragosC
Community Specialist
Community Specialist

Hi there, all. I'm just following up on the last message. Do you still need our help? Keep us posted. 

DragosC
Community Specialist
Community Specialist

Hi there. 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!