Why Your Nest Thermostat Isn't Working and How to Fix It

April 13, 2021

The Nest thermostat is one of the top-selling smart thermostats on the market today. And for good reason. It figures out your temperature preferences and makes an energy-efficient schedule to match. And by geofencing with your phone, the Nest Learning Thermostat and Nest E know when you’re at your house or out and about and can adjust temperatures to help you save even more.

The Nest is compatible with a full range of 24-volt heating and cooling systems, but it’s always a wise idea to check the Nest thermostat compatibility checker before getting one. Don’t forget to check with your energy company for valuable rebates, since you might be able to get a Nest for free or close to it.

Once you’ve checked it’s compatible, you can either wire it on your own or contact a HVAC specialist like Brandon Heating and Plumbing. If you’re wiring it yourself, 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. Most of the time, Nest says this isn’t a problem because the thermostat can pull enough power from other heating and cooling wires.

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

Why Your Nest Keeps Losing Power and Other Issues

The Google Nest Thermostat is an improvement from outdated programmable thermostats that have a combination of wiring and AA batteries for power. It has a rechargeable lithium-ion battery and wiring to connect to Wi-Fi, power its digital display and turn on your heating and cooling system.

8 Common Nest Thermostat Problems

If it can’t draw ample electricity, Nest says you might encounter some of these issues:

  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 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 message on your Nest thermostat’s screen, such as “heating is delayed for 2:30 minutes.”
  8. The system fan is constantly running, 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 check your thermostat right away. This is especially pertinent if the weather is moderate, and you haven’t been relying on your heat or air conditioning consistently.

Our Professionals Can Fix Nest Thermostat Troubles

If you’ve tried Nest thermostat troubleshooting on your own but can’t repair the issue, a smart thermostat professional such as one from Brandon Heating and Plumbing can support you. We can narrow down the problem and add a C-wire, if necessary.

Smart thermostats including the Nest are made to make your life simpler, by automatic energy-efficient programming and the option to keep an eye on temperatures while you’re on the go. It’s a time-consuming experience when yours won’t run correctly, but our heating and cooling specialists at Brandon Heating and Plumbing can take care of the trouble in no time.

If you’re running into strange heating and cooling behavior with your new Nest, reach out to us at 204-728-0180 to request your appointment right away.