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

April 13, 2021

The Nest thermostat is one of the best-selling smart thermostats on the market today. 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 know when you’re at your house 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 good idea to visit the Nest thermostat compatibility checker before purchasing one. Don’t forget to check with your energy provider for valuable rebates, because you could be able to get a Nest for free or close to it.

Once you’ve confirmed it’s compatible, you can either hook it up on your own or hire a HVAC professional like Speedy Air Conditioning. If you’re installing it yourself, you’ll see a terminal for the C-wire, or common wire. This wire is solely used for powering your thermostat. If your home or HVAC system is older, you might not have one of these wires. Most of the time, Nest says this isn’t a setback since the thermostat can draw adequate power from other heating and cooling wires.

In some cases, your heating and cooling system might have to have 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 sync with Wi-Fi, power its digital display and turn on your heating and cooling system.

8 Common Nest Thermostat Issues

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

  1. Bad battery life.
  2. Thermostat motion sensing won’t work.
  3. Your thermostat every now and then disconnects from Wi-Fi.
  4. Your system abruptly turns on or off, or won’t turn off.
  5. Your system is making weird noises, like 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 message on your Nest thermostat’s screen, along the lines of “heating is delayed for 2:30 minutes.”
  8. The system fan is continuously running, won’t switch on or turns off and on rapidly in a short period of time.

You could think something is up with your heating and cooling system, but if you just installed the Nest, we recommend you check your thermostat initially. This is especially pertinent if the weather is moderate, and you haven’t been using your heat or air conditioning frequently.

Our Professionals Can Resolve Nest Thermostat Problems

If you’ve gone through Nest thermostat troubleshooting by yourself but can’t solve the dilemma, a smart thermostat professional such as one from Speedy Air Conditioning can assist you. We can identify the issue and install a C-wire, if required.

Smart thermostats such as the Nest are made to make your life simpler, through automatic energy-efficient programming and the opportunity to monitor temps while you’re on the go. It’s an annoying experience when yours won’t operate properly, but our heating and cooling pros at Speedy Air Conditioning can resolve the issue quickly.

If you’re going through weird heating and cooling behavior with your new Nest, reach out to us at 239-244-3439 to set up your appointment today.