The Nest thermostat is one of the most popular smart thermostats you can get. And for good reason. It learns your temperature preferences and makes an energy-efficient schedule to match. And by 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 adjust 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 talk with your energy provider for valuable rebates, since 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 without help or call a HVAC specialist like Taylor's Heating & Air Conditioning. If you’re wiring it without help, you’ll spot a terminal for the C-wire, or common wire. This wire is solely used for powering your thermostat. If your house or HVAC system is older, you might not have one of these wires. In most cases, Nest says this isn’t a setback because the thermostat can draw ample power from other heating and cooling wires.

Sometimes, your heating and cooling system could require that C-wire. And here’s why.

Why Your Nest Keeps Losing Power and Other Malfunctions

The Google Nest Thermostat is a step up from older programmable thermostats that have a combination of wiring and AA batteries for power. It uses 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 Issues

If it can’t receive ample power, Nest says you may run into some of these problems:

  1. Bad battery life.
  2. Thermostat motion sensing is disabled.
  3. Your thermostat every now and then disconnects from Wi-Fi.
  4. Your system abruptly turns on or off, or won’t stop running.
  5. Your system is creating odd 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 message on your Nest thermostat’s screen, like “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 up with your heating and cooling system, but if you just started using the Nest, we advise you begin with your thermostat initially. This is especially true if the weather is mild, and you haven’t been using your heat or air conditioning frequently.

Our Specialists Can Fix Nest Thermostat Issues

If you’ve gone through Nest thermostat troubleshooting without help but can’t repair the issue, a smart thermostat pro including one from Taylor's Heating & Air Conditioning can provide support. We can diagnose the malfunction and add a C-wire, if necessary.

Smart thermostats including the Nest are designed to make your life simpler, through automatic energy-efficient programming and the option to monitor temps while you’re away from home. It’s a time-consuming experience when yours won’t work like it should, but our heating and cooling experts at Taylor's Heating & Air Conditioning can fix the trouble in no time.

If you’re running into odd heating and cooling behavior with your new Nest, reach out to us at to request your appointment today.