The Nest thermostat is one of the most popular smart thermostats you can get. And for good reason. It picks up on your temperature preferences and makes an energy-efficient schedule to match. And through geofencing with your phone, the Nest Learning Thermostat and Nest E realize when you’re at your house or away and can change temps to help you save even more.

The Nest can be used with a wide range of 24-volt heating and cooling systems, but it’s always a wise idea to use the Nest thermostat compatibility checker before purchasing one. Don’t forget to talk with your energy supplier for valuable rebates, as you could be able to get a Nest for free or close to it.

Once you’ve confirmed it’s compatible, you can either wire it without help or hire a HVAC pro like Gee & Missler Heating & Air Conditioning. If you’re putting it in on your own, you’ll notice a terminal for the C-wire, or common wire. This wire is just used for powering your thermostat. If your house 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 pull adequate power from other heating and cooling wires.

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

Why Your Nest Keeps Losing Power and Other Malfunctions

The Google Nest Thermostat is an improvement from outdated programmable thermostats that rely on a combination of wiring and AA batteries for power. It uses a rechargeable lithium-ion battery and wiring to sync with Wi-Fi, power its digital display and operate your heating and cooling system.

8 Common Nest Thermostat Problems

If it can’t receive enough juice, Nest says you may run into some of these problems:

  1. Poor battery life.
  2. Thermostat motion sensing won’t operate.
  3. Your thermostat occasionally disconnects from Wi-Fi.
  4. Your system unexpectedly turns on or off, or won’t stop running.
  5. Your system is making strange noises, like 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, like “heating is delayed for 2:30 minutes.”
  8. The system fan is continuously running, won’t turn on or turns off and on repeatedly in a short period of time.

You might think something is up with your heating and cooling system, but if you just started using the Nest, we advise you check your thermostat right away. This is especially timely if the weather is temperate, and you haven’t been using your heat or air conditioning much.

Our Pros Can Fix Nest Thermostat Troubles

If you’ve attempted Nest thermostat troubleshooting on your own but can’t fix the dilemma, a smart thermostat professional such as one from Gee & Missler Heating & Air Conditioning can assist you. We can determine the malfunction and install a C-wire, if necessary.

Smart thermostats like the Nest are created to make your life simpler, by automatic energy-efficient programming and the option to monitor temperatures while you’re out. It’s a frustrating experience when yours won’t operate properly, but our heating and cooling experts at Gee & Missler Heating & Air Conditioning can fix the issue fast.

If you’re running into odd heating and cooling behavior with your new Nest, give us a call at to set up your appointment right away.