The Nest thermostat is one of the most popular smart thermostats you can get. And for good reason. It learns your temperature preferences and makes an energy-efficient schedule to match. And using geofencing with your phone, the Nest Learning Thermostat and Nest E are aware of when you’re at your home or out and about and can change settings to help you save even more.

The Nest works with a vast range of 24-volt heating and cooling systems, but it’s always a good idea to use the Nest thermostat compatibility checker before installing one. Don’t forget to talk with your energy company for valuable rebates, because you may be able to get a Nest for free or close to it.

Once you’ve made sure it’s compatible, you can either hook it up on your own or hire a HVAC pro like Speed Air. If you’re wiring it yourself, you’ll spot a terminal for the C-wire, or common wire. This wire is just used for powering your thermostat. If your residence or HVAC system is older, you might not have one of these wires. Most of the time, Nest says this isn’t an issue because the thermostat can draw adequate power from other heating and cooling wires.

In some instances, your heating and cooling system could require that C-wire. And here’s why.

Why Your Nest Keeps Losing Power and Other Problems

The Google Nest Thermostat is a step up from older programmable thermostats that rely on a combination of wiring and AA batteries for power. It relies on a rechargeable lithium-ion battery and wiring to connect to Wi-Fi, power its digital display and run your heating and cooling system.

8 Common Nest Thermostat Problems

If it can’t get enough electricity, Nest says you could run into some of these troubles:

  1. Short battery life.
  2. Thermostat motion sensing won’t operate.
  3. Your thermostat every now and then disconnects from Wi-Fi.
  4. Your system unexpectedly turns on or off, or won’t stop running.
  5. Your system is making weird noises, such as chattering, stuttering, clicking or thumping.
  6. Heating or cooling is short cycling, or repeatedly turning on and off in a short period of time.
  7. There is a delay notification on your Nest thermostat’s screen, such as “heating is delayed for 2:30 minutes.”
  8. The system fan is constantly running, won’t run or turns off and on rapidly in a short period of time.

You could worry something is suspect with your heating and cooling system, but if you just installed the Nest, we advise you begin with your thermostat initially. This is especially true if the weather is temperate, and you haven’t been relying on your heat or air conditioning consistently.

Our Pros Can Fix Nest Thermostat Troubles

If you’ve tried Nest thermostat troubleshooting on your own but can’t fix the dilemma, a smart thermostat pro like one from Speed Air can assist you. We can diagnose the malfunction and add a C-wire, if needed.

Smart thermostats like the Nest are created to make your life simpler, with automatic energy-efficient programming and the opportunity to keep an eye on temperatures while you’re on the go. It’s an annoying experience when yours won’t run properly, but our heating and cooling pros at Speed Air can resolve the issue quickly.

If you’re going through weird heating and cooling behavior with your new Nest, reach out to us at to book your appointment today.