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Nest thermostat heatlink no connection

GazzaDob
Community Member

My thermostat and heatlink no communication after engineer powered off heatlink on my Morco boiler. before power off working fine 

1 Recommended Answer

OK, press the Heat Link button, and you should now have just the blue pulsing light?

2. The display, does it show on the screen something like this.

Check Again

Reset Pairing

Replace Heat Link

Tech Info

Should the answer be yes, go to Tech Info and check the 6 digit code under Heat Link. Make a note of that number, then return back to the screen.

Take a look at 6 digit code on your Heat Link found by the left hand fixing screw, or on the Heat Link lid by the screw. Does that number match the number you wrote down?

Answer Yes, go to the display and click, Reset Pairing, let it search for the Heat Link

Answer No , go to the screen and click Replace Heat Link - Enter the 6 digit number - When you get to continue, do NOT click continue, leave for a couple of minutes. After a couple of minutes, then click continue, the display will search for the Heat Link.

See what happens.

View Recommended Answer in original post

6 REPLIES 6

Frustratedddd
Bronze
Bronze

What are the colour of the lights on the Heat Link, and how many?

Just showing yellow?? - Try this - Press the thermostat against the wall and keep holding until you see the house come back on, then release. see if that helps.

  • Thanks for reply - lights on heat link 2 green 1 flashing blue - thermostat working and connected to network showing error H71 - can’t connect to control heating 
  • Thermostat us in its base 

OK, press the Heat Link button, and you should now have just the blue pulsing light?

2. The display, does it show on the screen something like this.

Check Again

Reset Pairing

Replace Heat Link

Tech Info

Should the answer be yes, go to Tech Info and check the 6 digit code under Heat Link. Make a note of that number, then return back to the screen.

Take a look at 6 digit code on your Heat Link found by the left hand fixing screw, or on the Heat Link lid by the screw. Does that number match the number you wrote down?

Answer Yes, go to the display and click, Reset Pairing, let it search for the Heat Link

Answer No , go to the screen and click Replace Heat Link - Enter the 6 digit number - When you get to continue, do NOT click continue, leave for a couple of minutes. After a couple of minutes, then click continue, the display will search for the Heat Link.

See what happens.

  • Many thanks for your help I wrongly “assumed” the code in tech info was correct nothing like the one on cover plate of link used that instant success many thanks again 👍 enjoy the rest of your Sunday have a great Xmas 👍

Good to hear all working now.

I would say in that case the thermostat is a none matched pair. Someone at sometime has replaced either the Heat Link or the display, as matched pairs do not require pairing. You will have to pair everytime a factory reset is done, no big deal as you know what to do now.

Glad your working

AnaM
Community Specialist
Community Specialist

Hey there,

 

I'm really glad to see everything is sorted now. 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.