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i have removed the thermostats ect and trying to re add them it get to the point where the wall e link and thermoset need to convey it won’t

Thermostat says E4: No power to the Rh wire

Out of nowhere my thermostat popped up with this error:Thermostat says E4: No power to the Rh wireI have charged the thermostat manually, I have tried to reset, I have checked the condensation pipes for clogs… all with no success. I have checked YouT...

Nest is sending security code on app to old email address, how do I change it to a new email address

Nest is sending security code on app to old email address, how do I change it to a new email address also when I go in to the nest app on the actual thermostat it says it already has an account. Help!!!!

New to nest heating ! Got

We have lived in this house for 7 months - through summer and now winterweve been hit with our gas bill along with everyone else and we don’t think we are running our heating at all right ! Can someone with some insight into this system please help l...

No power in Heat Link

Heat link No LED, electrician confirmed that we have power.

Nest thermostat stand

What size grub screws for thermostat stand,not supplied 

Can I install the nest with just 2 wires? Just have heat.

Unable to add managers to nest learning thermostat

We have a nest learning thermostat and have tried to add multiple managers to the account so they have access to make changes. We were able to add them in google home but they don’t show up in the nest app and can’t access the nest from their phones....

Compressor protection in defrost mode

With dual fuel application, When defrost is initiated and the gas furnace is energized,the heat pump is operating without the Condenser fan motor running because it is in defrost mode causing major damage to the compressor?