The Nest thermostat is one of the most popular smart thermostats you can get. And for good reason. It figures out your temperature preferences and creates an energy-efficient schedule to match. And using geofencing with your phone, the Nest Learning Thermostat and Nest E realize when you’re at your house or out and about and can raise and lower temperatures 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 smart idea to check the Nest thermostat compatibility checker before getting one. Don’t forget to check with your energy provider for valuable rebates, because you could be able to get a Nest for free or close to it.

Once you’ve made sure it’s compatible, you can either install it yourself or call a HVAC specialist like Central Air LLC. If you’re wiring it yourself, you’ll notice 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 since the thermostat can pull enough power from other heating and cooling wires.

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

Why Your Nest Keeps Losing Power and Other Problems

The Google Nest Thermostat is better than aging 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 link to Wi-Fi, power its digital display and operate your heating and cooling system.

8 Common Nest Thermostat Issues

If it can’t get adequate electricity, Nest says you might have some of these troubles:

  1. Poor battery life.
  2. Thermostat motion sensing won’t work.
  3. Your thermostat sometimes 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 constantly 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 always on, won’t switch on or turns off and on frequently in a short period of time.

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

Our Professionals Can Resolve Nest Thermostat Troubles

If you’ve gone through Nest thermostat troubleshooting without help but can’t repair the issue, a smart thermostat specialist including one from Central Air LLC can support you. We can diagnose the issue and add a C-wire, if needed.

Smart thermostats including the Nest are designed to make your life easier, through automatic energy-efficient programming and the option to monitor temperatures while you’re away from home. It’s a frustrating experience when yours won’t run correctly, but our heating and cooling experts at Central Air LLC can resolve the problem quickly.

If you’re running into weird heating and cooling behavior with your new Nest, call us at to schedule your appointment now.