The Nest thermostat is one of the most popular smart thermostats you can buy. 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 home or gone and can change settings to help you save even more.

The Nest can be used with a full 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 company for valuable rebates, as you could be able to get a Nest for free or close to it.

Once you’ve made sure it’s compatible, you can either hook it up yourself or call a HVAC pro like LTS Plumbing & Heating Inc.. If you’re putting it in on your own, you’ll notice 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 enough power from other heating and cooling wires.

In some cases, your heating and cooling system may have to have that C-wire. And here’s why.

Why Your Nest Keeps Losing Power and Other Problems

The Google Nest Thermostat is a step up from older programmable thermostats that rely on a combination of wiring and AA batteries for power. It has a rechargeable lithium-ion battery and wiring to link to Wi-Fi, power its digital display and operate your heating and cooling system.

8 Common Nest Thermostat Malfunctions

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

  1. Bad battery life.
  2. Thermostat motion sensing won’t operate.
  3. Your thermostat sometimes disconnects from Wi-Fi.
  4. Your system unexpectedly turns on or off, or won’t turn off.
  5. Your system is producing weird noises, including 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 always working, won’t turn on or turns off and on rapidly in a short period of time.

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

Our Pros Can Resolve Nest Thermostat Issues

If you’ve tried Nest thermostat troubleshooting on your own but can’t repair the issue, a smart thermostat pro including one from LTS Plumbing & Heating Inc. can support you. We can pinpoint the problem and add a C-wire, if necessary.

Smart thermostats such as the Nest are made to make your life more convenient, through automatic energy-efficient programming and the opportunity to keep an eye on temperatures while you’re out. It’s a frustrating experience when yours won’t work properly, but our heating and cooling pros at LTS Plumbing & Heating Inc. can take care of the problem fast.

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