How do I stop my nest from changing temperature?Nest Thermostat keeps turning the heating on, ignoring my pleas.

The U.S. Help Center is one of the Help Centers that you can choose to get the most out of Google Home.

Sometimes heating or cooling systems can be strange.For instance, if you notice your system is always on, it won't turn on or off, or it makes strange noises, that's a sign.There may be a power issue if that is the case.If you need to deliver consistent power to your thermostat, you may need a C wire or the Nest Power Connector.

There are a number of reasons why your heating and cooling system might be malfunctioning.

Here are some steps you can take if your symptoms match the symptom lists in step 1 above.

When installing a thermostat, there are usually issues with the wiring.They can surface later as well, but usually for different reasons.

If you want to diagnose possible system maintenance issues, you can install your old thermostat.If your system isn't providing enough power to your thermostat, this will tell you if there is a maintenance problem.

If you connected a thermostat to an incompatible system, you will experience unexpected behavior.Some of the models from various manufacturers are incompatible with the ones that work with most 24V systems.The C wire may be needed to be compatible.There are system types that aren't compatible with Nest.

Sometimes the wire in your thermostat is not connected to your system.

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