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H71 code and no lights on heat link.

madgabb
Community Member

Hi
my heat link has stopped working. 
stat displays h71 code.

heat link has no light displayed, and has 240v at the supply end.

please help?

9 REPLIES 9

richiwills9541
Community Member

Hi, I have same issue this evening. Have you had any contact or service support?

Hi richi 

no contact or service support yet?

this was my 1st step at the moment 

LongdS
Community Member

Hi, same issue here tonight. No lights or power. Can't control heating.

Bit of a coincidence people having the same issue at once.

I'm contacting Google in the morning. Says lines/chat opens at 8am

CristianC
Community Specialist
Community Specialist

Hello everyone,

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 ( thermostats ) are present in the setup?


Regards,
Cristian

CristianC
Community Specialist
Community Specialist

Hello again. Just checking in. How's it going with your Heat Links?

Spoke to nest team  on the phone and they are sending out a engineer to replace and install a new heat link.

even though it’s out of warranty .

Couldn’t ask for more. 👍

CristianC
Community Specialist
Community Specialist

Hey @madgabb. I'm glad to hear that. If anything comes up, feel free to reach back. 

AlexD
Community Specialist
Community Specialist

Hi, I wanted to check in. Did the engineer come over? Let me know if you need any further assistance. 

CristianC
Community Specialist
Community Specialist

Hello again. I haven't seen any updates on this thread in a while so I'm going to lock it. If you're still experiencing issues, feel free to open a new one.