Why Your Nest Thermostat Isn't Running Right and How to Fix It

April 13, 2021

The Nest thermostat is one of the most popular smart thermostats you can buy. And for good reason. It learns your temperature preferences and creates an energy-efficient schedule to match. And through geofencing with your phone, the Nest Learning Thermostat and Nest E know when you’re at your residence or out and about and can raise and lower temperatures to help you save even more.

The Nest works 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 installing one. Don’t forget to contact your energy supplier for valuable rebates, because you may be able to get a Nest for free or close to it.

Once you’ve checked it’s compatible, you can either wire it on your own or hire a HVAC specialist like Faust Air Conditioning and Heating. If you’re installing 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 because the thermostat can get enough power from other heating and cooling wires.

In some instances, 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The Google Nest Thermostat is better than outdated programmable thermostats that rely on a combination of wiring and AA batteries for power. It relies on 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 Malfunctions

If it can’t draw enough juice, Nest says you might encounter some of these problems:

  1. Short battery life.
  2. Thermostat motion sensing won’t work.
  3. Your thermostat every now and then disconnects from Wi-Fi.
  4. Your system abruptly turns on or off, or won’t turn off.
  5. Your system is creating weird noises, such as 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 constantly running, won’t switch on or turns off and on repeatedly in a short period of time.

You could believe something is suspect with your heating and cooling system, but if you just started using the Nest, we recommend you start with your thermostat first. This is especially pertinent if the weather is moderate, and you haven’t been using your heat or air conditioning consistently.

Our Pros Can Fix Nest Thermostat Problems

If you’ve attempted Nest thermostat troubleshooting on your own but can’t repair the issue, a smart thermostat pro like one from Faust Air Conditioning and Heating can provide assistance. We can diagnose the malfunction and put in a C-wire, if necessary.

Smart thermostats including the Nest are created to make your life easier, through automatic energy-efficient programming and the opportunity to check settings while you’re out. It’s a time-consuming experience when yours won’t work like it should, but our heating and cooling experts at Faust Air Conditioning and Heating can take care of the issue fast.

If you’re experiencing strange heating and cooling behavior with your new Nest, give us a call at 979-323-6130 to book your appointment right away.