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

The Nest is compatible with a wide range of 24-volt heating and cooling systems, but it’s always a good idea to check the Nest thermostat compatibility checker before purchasing one. Don’t forget to contact your energy supplier for valuable rebates, because you may be able to get a Nest for free or close to it.

Once you’ve confirmed it’s compatible, you can either install it without help or hire a HVAC specialist like Tru Air Systems LLC. If you’re putting it in yourself, you’ll notice a terminal for the C-wire, or common wire. This wire is solely used for powering your thermostat. If your home or HVAC system is older, you might not have one of these wires. In most cases, Nest says this isn’t a problem as the thermostat can get adequate power from other heating and cooling wires.

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

Why Your Nest Keeps Losing Power and Other Problems

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

8 Common Nest Thermostat Problems

If it can’t get ample power, Nest says you might run into some of these troubles:

  1. Short battery life.
  2. Thermostat motion sensing won’t operate.
  3. Your thermostat occasionally disconnects from Wi-Fi.
  4. Your system suddenly turns on or off, or won’t turn off.
  5. Your system is producing strange noises, like chattering, stuttering, clicking or thumping.
  6. Heating or cooling is short cycling, or frequently turning on and off in a short period of time.
  7. There is a delay notice on your Nest thermostat’s screen, like “heating is delayed for 2:30 minutes.”
  8. The system fan is always working, won’t turn on or turns off and on frequently in a short period of time.

You could worry something is suspect with your heating and cooling system, but if you just got the Nest, we recommend you start with your thermostat initially. This is especially pertinent if the weather is mild, and you haven’t been using your heat or air conditioning frequently.

Our Specialists Can Solve Nest Thermostat Issues

If you’ve tried Nest thermostat troubleshooting on your own but can’t repair the issue, a smart thermostat professional such as one from Tru Air Systems LLC can support you. We can determine the malfunction and install a C-wire, if necessary.

Smart thermostats such as the Nest are made to make your life easier, with automatic energy-efficient programming and the opportunity to keep an eye on temps while you’re away from home. It’s a time-consuming experience when yours won’t run properly, but our heating and cooling specialists at Tru Air Systems LLC can resolve the problem fast.

If you’re going through unexplained heating and cooling behavior with your new Nest, give us a call at to set up your appointment now.