The Nest thermostat is one of the best-selling 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 know when you’re at your home or away 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 wise idea to visit the Nest thermostat compatibility checker before purchasing one. Don’t forget to talk with your energy supplier for valuable rebates, since you may 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 without help or hire a HVAC pro like All Weather Heating & Air Conditioning Inc. If you’re wiring it on your own, you’ll spot 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 the majority of cases, Nest says this isn’t an issue as the thermostat can get ample power from other heating and cooling wires.

In some instances, your heating and cooling system could require 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 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 Malfunctions

If it can’t get ample power, Nest says you could encounter some of these issues:

  1. Short battery life.
  2. Thermostat motion sensing won’t operate.
  3. Your thermostat occasionally disconnects from Wi-Fi.
  4. Your system abruptly turns on or off, or won’t turn off.
  5. Your system is making weird 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, such as “heating is delayed for 2:30 minutes.”
  8. The system fan is constantly running, won’t switch on or turns off and on rapidly in a short period of time.

You may worry something is up with your heating and cooling system, but if you just got the Nest, we suggest you check your thermostat initially. This is especially pertinent if the weather is mild, and you haven’t been running your heat or air conditioning frequently.

Our Specialists Can Fix Nest Thermostat Troubles

If you’ve tried Nest thermostat troubleshooting without help but can’t solve the problem, a smart thermostat specialist including one from All Weather Heating & Air Conditioning Inc can support you. We can identify the malfunction and add a C-wire, if needed.

Smart thermostats such as the Nest are designed to make your life easier, with 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 work properly, but our heating and cooling experts at All Weather Heating & Air Conditioning Inc can fix the problem fast.

If you’re going through unexplained heating and cooling behavior with your new Nest, call us at to book your appointment right away.