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

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

Once you’ve confirmed it’s compatible, you can either install it on your own or contact a HVAC pro like Enertek Air Conditioning & Heating. If you’re installing it yourself, you’ll see a terminal for the C-wire, or common wire. This wire is solely 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 a setback as the thermostat can draw adequate power from other heating and cooling wires.

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

Why Your Nest Keeps Losing Power and Other Issues

The Google Nest Thermostat is a step up from outdated programmable thermostats that use a combination of wiring and AA batteries for power.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 turn on your heating and cooling system.

8 Common Nest Thermostat Issues

If it can’t get enough electricity, Nest says you could have some of these problems:

  1. Bad battery life.
  2. Thermostat motion sensing won’t work.
  3. Your thermostat sometimes disconnects from Wi-Fi.
  4. Your system abruptly turns on or off, or won’t turn off.
  5. Your system is making strange noises, including 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, such as “heating is delayed for 2:30 minutes.”
  8. The system fan is constantly on, won’t run or turns off and on frequently in a short period of time.

You could think something is up with your heating and cooling system, but if you just got the Nest, we suggest you start with your thermostat initially. This is especially timely if the weather is temperate, and you haven’t been relying on your heat or air conditioning consistently.

Our Pros Can Solve Nest Thermostat Issues

If you’ve attempted Nest thermostat troubleshooting on your own but can’t fix the problem, a smart thermostat pro such as one from Enertek Air Conditioning & Heating can provide support. We can determine the issue and put in a C-wire, if required.

Smart thermostats including the Nest are created to make your life simpler, by automatic energy-efficient programming and the option to monitor settings while you’re away from home. It’s a frustrating experience when yours won’t operate correctly, but our heating and cooling pros at Enertek Air Conditioning & Heating can fix the issue fast.

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