Why Your Nest Thermostat Isn't Working 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 picks up on your temperature preferences and makes an energy-efficient schedule to match. And using geofencing with your phone, the Nest Learning Thermostat and Nest E are aware of when you’re at your home or away and can adjust temps to help you save even more.

The Nest works 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 on your own or call a HVAC specialist like AC Sales. If you’re wiring it yourself, you’ll spot 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 draw adequate power from other heating and cooling wires.

In some cases, your heating and cooling system might require 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 have 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 run your heating and cooling system.

8 Common Nest Thermostat Problems

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

  1. Poor battery life.
  2. Thermostat motion sensing won’t operate.
  3. Your thermostat every now and then disconnects from Wi-Fi.
  4. Your system unexpectedly turns on or off, or won’t turn off.
  5. Your system is creating 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 notification on your Nest thermostat’s screen, along the lines of “heating is delayed for 2:30 minutes.”
  8. The system fan is constantly running, won’t switch on or turns off and on frequently in a short period of time.

You might think something is suspect with your heating and cooling system, but if you just started using the Nest, we recommend you start with your thermostat right away. This is especially timely if the weather is moderate, and you haven’t been using your heat or air conditioning much.

Our Pros Can Fix Nest Thermostat Problems

If you’ve tried Nest thermostat troubleshooting on your own but can’t solve the dilemma, a smart thermostat professional like one from AC Sales can assist you. We can diagnose the issue and install a C-wire, if needed.

Smart thermostats such as the Nest are designed to make your life simpler, by automatic energy-efficient programming and the ability to keep an eye on settings while you’re on the go. It’s an annoying experience when yours won’t run correctly, but our heating and cooling specialists at AC Sales can fix the problem fast.

If you’re experiencing atypical heating and cooling behavior with your new Nest, give us a call at (337) 234-2345 to book your appointment right away.