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 you can buy. 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 know when you’re at your home or gone and can raise and lower temperatures to help you save even more.

The Nest works with a vast range of 24-volt heating and cooling systems, but it’s always a smart idea to use the Nest thermostat compatibility checker before purchasing one. Don’t forget to talk with your energy provider for valuable rebates, because you may be able to get a Nest for free or close to it.

Once you’ve checked it’s compatible, you can either hook it up on your own or call a HVAC pro like YES R&M Inc.. If you’re installing it on your own, 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. Most of the time, Nest says this isn’t a problem because the thermostat can get ample power from other heating and cooling wires.

Sometimes, your heating and cooling system might have to have that C-wire. And here’s why.

Why Your Nest Keeps Losing Power and Other Malfunctions

The Google Nest Thermostat is an improvement from outdated programmable thermostats that have a combination of wiring and AA batteries for power.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

8 Common Nest Thermostat Issues

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

  1. Short battery life.
  2. Thermostat motion sensing won’t operate.
  3. Your thermostat occasionally disconnects from Wi-Fi.
  4. Your system abruptly turns on or off, or won’t turn off.
  5. Your system is making 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 constantly running, won’t run or turns off and on rapidly in a short period of time.

You could worry something is wrong with your heating and cooling system, but if you just got the Nest, we recommend you check your thermostat initially. This is especially true if the weather is moderate, and you haven’t been running your heat or air conditioning consistently.

Our Specialists Can Solve Nest Thermostat Troubles

If you’ve tried Nest thermostat troubleshooting without help but can’t solve the issue, a smart thermostat pro like one from YES R&M Inc. can assist you. We can diagnose the malfunction and add a C-wire, if needed.

Smart thermostats like the Nest are designed to make your life more convenient, by automatic energy-efficient programming and the option to monitor temps while you’re away from home. It’s an annoying experience when yours won’t work like it should, but our heating and cooling experts at YES R&M Inc. can fix the problem fast.

If you’re going through strange heating and cooling behavior with your new Nest, reach out to us at 562-286-6624 to set up your appointment right away.