The Nest thermostat is one of the best-selling smart thermostats on the market today. And for good reason. It figures out your temperature preferences and makes an energy-efficient schedule to match. And through geofencing with your phone, the Nest Learning Thermostat and Nest E realize when you’re at your residence or gone and can adjust temps to help you save even more.

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

Once you’ve made sure it’s compatible, you can either install it without help or hire a HVAC professional like Tokay. If you’re installing it on your own, you’ll see a terminal for the C-wire, or common wire. This wire is just 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 an issue since the thermostat can get adequate 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 Problems

The Google Nest Thermostat is an improvement from aging 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 turn on your heating and cooling system.

8 Common Nest Thermostat Problems

If it can’t get enough juice, Nest says you may run into some of these troubles:

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

You may worry something is wrong with your heating and cooling system, but if you just installed the Nest, it’s best to begin with your thermostat first. This is especially timely if the weather is temperate, and you haven’t been running your heat or air conditioning frequently.

Our Specialists Can Fix Nest Thermostat Troubles

If you’ve attempted Nest thermostat troubleshooting by yourself but can’t solve the dilemma, a smart thermostat professional such as one from Tokay can assist you. We can identify the problem and put in a C-wire, if necessary.

Smart thermostats like the Nest are made to make your life more convenient, by automatic energy-efficient programming and the ability to keep an eye on temperatures while you’re away from home. It’s an annoying experience when yours won’t work properly, but our heating and cooling specialists at Tokay can fix the problem quickly.

If you’re going through odd heating and cooling behavior with your new Nest, call us at to set up your appointment right away.