The Nest thermostat is one of the top-selling smart thermostats you can get. And for good reason. It picks up on your temperature preferences and develops an energy-efficient schedule to match. And through geofencing with your phone, the Nest Learning Thermostat and Nest E are aware of when you’re at your home or out and about and can adjust temperatures to help you save even more.

The Nest is compatible 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 contact your energy company for valuable rebates, as you may 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 professional like Miller Climate Control LLC. If you’re putting it in on your own, you’ll see 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 most 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 could need that C-wire. And here’s why.

Why Your Nest Keeps Losing Power and Other Issues

The Google Nest Thermostat is better than outdated programmable thermostats that have a combination of wiring and AA batteries for power.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

8 Common Nest Thermostat Issues

If it can’t receive enough juice, Nest says you may have some of these problems:

  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 stop running.
  5. Your system is creating odd noises, including chattering, stuttering, clicking or thumping.
  6. Heating or cooling is short cycling, or constantly 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 on, won’t switch on or turns off and on frequently in a short period of time.

You might worry something is suspect with your heating and cooling system, but if you just got the Nest, we suggest you start with your thermostat initially. This is especially timely if the weather is temperate, and you haven’t been using your heat or air conditioning frequently.

Our Professionals Can Solve Nest Thermostat Troubles

If you’ve gone through Nest thermostat troubleshooting on your own but can’t fix the issue, a smart thermostat specialist including one from Miller Climate Control LLC can support you. We can determine the malfunction and put in a C-wire, if needed.

Smart thermostats such as the Nest are created to make your life easier, by automatic energy-efficient programming and the ability to check settings while you’re away from home. It’s an annoying experience when yours won’t operate like it should, but our heating and cooling specialists at Miller Climate Control LLC can resolve the issue fast.

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