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

April 13, 2021

The Nest thermostat is one of the top-selling smart thermostats on the market today. 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 house or gone and can adjust 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 wise idea to check the Nest thermostat compatibility checker before purchasing one. Don’t forget to talk with your energy company for valuable rebates, since you could be able to get a Nest for free or close to it.

Once you’ve made sure it’s compatible, you can either hook it up on your own or contact a HVAC pro like PWA Heating & Cooling Inc. If you’re installing it on your own, you’ll see a terminal for the C-wire, or common wire. This wire is only used for powering your thermostat. If your residence or HVAC system is older, you might not have one of these wires. In the majority of cases, Nest says this isn’t a problem since the thermostat can pull enough power from other heating and cooling wires.

In some cases, your heating and cooling system could need that C-wire. And here’s why.

Why Your Nest Keeps Losing Power and Other Issues

The Google Nest Thermostat is better than 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 connect 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 enough power, Nest says you could experience some of these problems:

  1. Short battery life.
  2. Thermostat motion sensing is disabled.
  3. Your thermostat every now and then disconnects from Wi-Fi.
  4. Your system suddenly turns on or off, or won’t shut off.
  5. Your system is making strange noises, like 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, like “heating is delayed for 2:30 minutes.”
  8. The system fan is constantly working, won’t turn on or turns off and on frequently in a short period of time.

You may think something is suspect with your heating and cooling system, but if you just got the Nest, we recommend you check your thermostat right away. This is especially true if the weather is temperate, and you haven’t been running your heat or air conditioning frequently.

Our Pros Can Resolve Nest Thermostat Problems

If you’ve attempted Nest thermostat troubleshooting by yourself but can’t repair the problem, a smart thermostat specialist like one from PWA Heating & Cooling Inc can help. We can diagnose the problem and put in a C-wire, if necessary.

Smart thermostats such as the Nest are designed to make your life more convenient, by automatic energy-efficient programming and the option to keep an eye on temps while you’re out. It’s a frustrating experience when yours won’t run correctly, but our heating and cooling specialists at PWA Heating & Cooling Inc can resolve the issue fast.

If you’re experiencing odd heating and cooling behavior with your new Nest, call us at 815-410-1231 to schedule your appointment right away.