Why Your Nest Thermostat Isn't Running Right and How to Solve the Problem

April 13, 2021

The Nest thermostat is one of the best-selling smart thermostats you can buy. And for good reason. It learns your temperature preferences and makes 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 house or gone and can adjust temps 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 smart idea to check the Nest thermostat compatibility checker before getting one. Don’t forget to contact your energy supplier for valuable rebates, since you could 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 yourself or hire a HVAC professional like Connolly Electric & Mechanical. 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 house 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 because the thermostat can get adequate power from other heating and cooling wires.

In some cases, your heating and cooling system might require 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 aging programmable thermostats that use 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 Malfunctions

If it can’t receive ample electricity, Nest says you may encounter some of these problems:

  1. Bad battery life.
  2. Thermostat motion sensing is disabled.
  3. Your thermostat occasionally disconnects from Wi-Fi.
  4. Your system suddenly turns on or off, or won’t stop running.
  5. Your system is creating weird 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 notification on your Nest thermostat’s screen, such as “heating is delayed for 2:30 minutes.”
  8. The system fan is continuously working, won’t run or turns off and on repeatedly in a short period of time.

You might believe something is up with your heating and cooling system, but if you just installed the Nest, we advise you start with your thermostat initially. This is especially timely if the weather is temperate, and you haven’t been relying on your heat or air conditioning consistently.

Our Specialists Can Resolve Nest Thermostat Troubles

If you’ve tried Nest thermostat troubleshooting on your own but can’t solve the issue, a smart thermostat pro such as one from Connolly Electric & Mechanical can help. We can narrow down the problem and add a C-wire, if needed.

Smart thermostats like the Nest are designed to make your life easier, by automatic energy-efficient programming and the opportunity to keep an eye on settings while you’re away from home. It’s a time-consuming experience when yours won’t operate correctly, but our heating and cooling professionals at Connolly Electric & Mechanical can take care of the trouble quickly.

If you’re running into unexplained heating and cooling behavior with your new Nest, give us a call at 928-639-4251 to set up your appointment right away.