The Nest thermostat is one of the top-selling smart thermostats you can buy. 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 raise and lower temperatures to help you save even more.

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

Once you’ve checked it’s compatible, you can either wire it yourself or hire a HVAC specialist like Dial One Mears Air Conditioning & Heating Inc. If you’re wiring it without help, you’ll spot a terminal for the C-wire, or common wire. This wire is only 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 an issue because the thermostat can get ample power from other heating and cooling wires.

In some cases, 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 a step up from aging programmable thermostats that use a combination of wiring and AA batteries for power. It has a rechargeable lithium-ion battery and wiring to link to Wi-Fi, power its digital display and turn on your heating and cooling system.

8 Common Nest Thermostat Malfunctions

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

  1. Short battery life.
  2. Thermostat motion sensing won’t work.
  3. Your thermostat occasionally disconnects from Wi-Fi.
  4. Your system abruptly turns on or off, or won’t stop running.
  5. Your system is producing odd noises, including 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, along the lines of “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 could believe something is wrong with your heating and cooling system, but if you just installed the Nest, it’s best to start with your thermostat first. This is especially pertinent if the weather is moderate, and you haven’t been using your heat or air conditioning much.

Our Specialists Can Solve Nest Thermostat Issues

If you’ve attempted Nest thermostat troubleshooting by yourself but can’t fix the dilemma, a smart thermostat pro including one from Dial One Mears Air Conditioning & Heating Inc can assist you. We can diagnose the issue and install a C-wire, if required.

Smart thermostats like the Nest are created to make your life easier, with automatic energy-efficient programming and the opportunity to monitor settings while you’re away from home. It’s a frustrating experience when yours won’t work properly, but our heating and cooling experts at Dial One Mears Air Conditioning & Heating Inc can fix the problem quickly.

If you’re experiencing unexplained heating and cooling behavior with your new Nest, reach out to us at to request your appointment now.