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

April 13, 2021

The Nest thermostat is one of the most popular smart thermostats on the market today. And for good reason. It learns your temperature preferences and develops an energy-efficient schedule to match. And by geofencing with your phone, the Nest Learning Thermostat and Nest E realize when you’re at your house or out and about and can change settings 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 visit the Nest thermostat compatibility checker before purchasing 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 install it without help or hire a HVAC specialist like Phelps Heating & Cooling. If you’re wiring it without help, you’ll spot a terminal for the C-wire, or common wire. This wire is only used for powering your thermostat. If your home or HVAC system is older, you might not have one of these wires. In most cases, Nest says this isn’t a problem since the thermostat can draw adequate power from other heating and cooling wires.

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

Why Your Nest Keeps Losing Power and Other Problems

The Google Nest Thermostat is an improvement from aging programmable thermostats that use 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 operate your heating and cooling system.

8 Common Nest Thermostat Problems

If it can’t get adequate power, Nest says you could experience some of these problems:

  1. Bad battery life.
  2. Thermostat motion sensing won’t work.
  3. Your thermostat occasionally disconnects from Wi-Fi.
  4. Your system suddenly turns on or off, or won’t stop running.
  5. Your system is producing strange noises, such as chattering, stuttering, clicking or thumping.
  6. Heating or cooling is short cycling, or frequently turning on and off in a short period of time.
  7. There is a delay notification on your Nest thermostat’s screen, like “heating is delayed for 2:30 minutes.”
  8. The system fan is always running, won’t switch on or turns off and on rapidly in a short period of time.

You might worry something is wrong with your heating and cooling system, but if you just installed the Nest, we suggest you begin with your thermostat right away. This is especially true if the weather is moderate, and you haven’t been using your heat or air conditioning consistently.

Our Professionals Can Solve Nest Thermostat Problems

If you’ve attempted Nest thermostat troubleshooting by yourself but can’t fix the issue, a smart thermostat specialist like one from Phelps Heating & Cooling can support you. We can identify the issue and install a C-wire, if necessary.

Smart thermostats like the Nest are designed to make your life more convenient, by automatic energy-efficient programming and the opportunity to keep an eye on temps while you’re out. It’s an annoying experience when yours won’t work correctly, but our heating and cooling professionals at Phelps Heating & Cooling can take care of the trouble fast.

If you’re experiencing strange heating and cooling behavior with your new Nest, reach out to us at 270-358-3167 to schedule your appointment right away.