topic Re: Heating not working correctly in Nest Thermostats

Heating not working correctly

Mark770 — Sat, 27 Nov 2021 15:10:31 GMT

My heating keeps being triggered whenever my hot water comes on. This never happened previously in a year of having this set up. Please can someone offer advice as my house is heating up when not needed and wasting money. My app also indicates that the heating isn't actually on

Re: Heating not working correctly

CristianC — Wed, 01 Dec 2021 13:38:41 GMT

Hey @Mark770,

Thanks for reaching out. This might happen if the Heat Link is not wired correctly. Have you had work done on your electrical/heating system recently? Just to confirm, the heating turns on each time you boost the hot water?

Re: Heating not working correctly

Mark770 — Wed, 01 Dec 2021 14:26:13 GMT

Hi Cristian, no work done recently or since installed actually. I can elaborate a little more in that what actually seems to be now happening is that my upstairs heating is coming on whenever the water is heating yet downstairs remains off. The upstairs/downstairs aren't independent of each other and run off the single thermostat

Re: Heating not working correctly

AnaM — Tue, 07 Dec 2021 16:34:57 GMT

Hey @Mark770,

Just to clarify, how many thermostats do you have? How are they wired if not independently? How many Heat Links do you have installed?

Re: Heating not working correctly

AnaM — Thu, 09 Dec 2021 17:02:50 GMT

Hey @Mark770,

How's it going? Do you still need help?

Re: Heating not working correctly

Mark770 — Thu, 09 Dec 2021 18:49:37 GMT

All seems to be working now thanks after tinkering about with the original thermostat etc so thanks for checking back

Re: Heating not working correctly

AnaM — Mon, 13 Dec 2021 13:28:12 GMT

Hey @Mark770,

I'm glad to hear everything's back up and running. Let me know if you need assistance with anything else.

Re: Heating not working correctly

AlexD — Sat, 18 Dec 2021 15:03:32 GMT

Hi, I just wanted to check in.

How has it been behaving so far? Make sure to let me know if anything else comes up.

Re: Heating not working correctly

Mark770 — Sat, 18 Dec 2021 15:10:36 GMT

My app keeps disconnecting from my thermostat meaning I don't have functionality to activate heating whilst away from home. At a loss as to how to fix.

Re: Heating not working correctly

AlexD — Sat, 18 Dec 2021 15:17:45 GMT

Gotcha. Just to check, does the thermostat show offline in the app? Or does it not show the thermostat as all? Or does it just not respond to commands from the app?

Re: Heating not working correctly

Mark770 — Sat, 18 Dec 2021 15:22:07 GMT

Just in the app but is actually online so can work as per schedule. Obviously can't monitor usage history

Re: Heating not working correctly

Jenjam — Sat, 01 Jan 2022 09:36:38 GMT

Hi mark,

I'm having the same problem,how did you fix it? I can't seem to get a response from anyone else!

Re: Heating not working correctly

Jenjam — Sat, 01 Jan 2022 09:42:16 GMT

What settings did you tinker with @Mark770 to make this issue stop?

Thank you

Re: Heating not working correctly

Mark770 — Sat, 01 Jan 2022 09:52:00 GMT

Very much a case of doing restarts on the thermostat. I even adjusted the temp setting on the original thermostat that is still connected. The issue returned last week so called Google support and they were barely any assistance. I've just received a booster for my home WiFi so am hoping that may be of some use and hopefully stop the issue once and for all as wonder if WiFi interference was responsible.

Re: Heating not working correctly

Jenjam — Mon, 03 Jan 2022 12:32:41 GMT

Hi Mark,

Thanks for your help. I don't know if it helps but a quick google suggests that my 3port valve between the water and heating (in front of water cylinder) is stuck/broken - it's not able to just heat water because the valve is stuck at W or the mid point so it's heating both the water and the radiators at the same time. I found a video on youtube explaining it... https://youtu.be/rw6NhmCa-qk

I feel so bad that I blamed my nest! Just in case it's not your wifi extender I thought I'd share.

Thanks again for replying to me!

Re: Heating not working correctly

AnaM — Tue, 04 Jan 2022 15:38:31 GMT

Hey @Mark770,

Please let me know if you still have issues with your thermostat, I'll be happy to help.

Re: Heating not working correctly

latoyarhoward55 — Thu, 06 Jan 2022 01:01:49 GMT

I have a customer that needs help. It is very cold and the heat isn't coming on

Re: Heating not working correctly

CristianC — Wed, 12 Jan 2022 14:23:30 GMT

Hey @latoyarhoward55. I'll do my best to get this resolved. Do you hear a click sound coming from the Heat Link when you try to turn off/on the heating?

Re: Heating not working correctly

ohg0805 — Sun, 16 Jan 2022 17:32:46 GMT

Today we have two 3rd gen thermostats installs. Once upstairs (that plugs into the wall) that controls radiators upstairs, the second downstairs hard wired into the wall where an old thermostat was. The one downstairs is supposed to control our heating downstairs and hot water tank. Neither are working and radiators not coming on.

Re: Heating not working correctly

CristianC — Mon, 17 Jan 2022 11:45:43 GMT

Hey @ohg0805. If you just installed them, then the wiring might be incorrect. Could you tell me what wires you have in the Heat Link terminals?