Why Your Nest Thermostat Isn't Operating Right and How to Repair It

April 13, 2021

The Nest thermostat is one of the best-selling smart thermostats you can buy. And for good reason. It figures out your temperature preferences and develops an energy-efficient schedule to match. And by geofencing with your phone, the Nest Learning Thermostat and Nest E are aware of when you’re at your house or away and can adjust temps to help you save even more.

The Nest can be used with a wide range of 24-volt heating and cooling systems, but it’s always a wise idea to check the Nest thermostat compatibility checker before getting one. Don’t forget to contact your energy supplier 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 install it on your own or call a HVAC specialist like Marcos AC & Heating. If you’re wiring it yourself, you’ll notice a terminal for the C-wire, or common wire. This wire is solely 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 pull ample power from other heating and cooling wires.

In some cases, your heating and cooling system could require 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 relies on a rechargeable lithium-ion battery and wiring to sync with Wi-Fi, power its digital display and run your heating and cooling system.

8 Common Nest Thermostat Issues

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

  1. Short battery life.
  2. Thermostat motion sensing is disabled.
  3. Your thermostat every now and then disconnects from Wi-Fi.
  4. Your system suddenly turns on or off, or won’t shut off.
  5. Your system is making weird noises, like 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 working, won’t run or turns off and on frequently in a short period of time.

You may think something is wrong with your heating and cooling system, but if you just started using the Nest, we suggest you start with your thermostat right away. This is especially true if the weather is moderate, and you haven’t been using your heat or air conditioning consistently.

Our Specialists Can Resolve Nest Thermostat Problems

If you’ve gone through Nest thermostat troubleshooting by yourself but can’t fix the problem, a smart thermostat specialist including one from Marcos AC & Heating can assist you. We can identify the problem and add a C-wire, if required.

Smart thermostats like the Nest are made to make your life easier, with automatic energy-efficient programming and the opportunity to check temps while you’re away from home. It’s a time-consuming experience when yours won’t work like it should, but our heating and cooling experts at Marcos AC & Heating can resolve the problem fast.

If you’re experiencing strange heating and cooling behavior with your new Nest, reach out to us at 713-469-3357 to book your appointment now.