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

April 13, 2021

The Nest thermostat is one of the best-selling smart thermostats on the market today. And for good reason. It picks up on your temperature preferences and creates an energy-efficient schedule to match. And using geofencing with your phone, the Nest Learning Thermostat and Nest E realize when you’re at your home or gone and can raise and lower temps to help you save even more.

The Nest works with a vast range of 24-volt heating and cooling systems, but it’s always a smart idea to visit the Nest thermostat compatibility checker before getting one. Don’t forget to check with your energy company for valuable rebates, as you may 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 on your own or call a HVAC specialist like Colvin's Heating and Cooling. If you’re wiring it on your own, you’ll spot 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 a setback since the thermostat can draw ample power from other heating and cooling wires.

Sometimes, your heating and cooling system might have to have that C-wire. And here’s why.

Why Your Nest Keeps Losing Power and Other Problems

The Google Nest Thermostat is an improvement 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 run your heating and cooling system.

8 Common Nest Thermostat Issues

If it can’t draw adequate power, Nest says you could run into some of these problems:

  1. Short battery life.
  2. Thermostat motion sensing won’t work.
  3. Your thermostat sometimes disconnects from Wi-Fi.
  4. Your system abruptly turns on or off, or won’t turn off.
  5. Your system is producing odd noises, including 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 notice on your Nest thermostat’s screen, like “heating is delayed for 2:30 minutes.”
  8. The system fan is always on, won’t run or turns off and on rapidly in a short period of time.

You might think something is suspect with your heating and cooling system, but if you just started using the Nest, we suggest you check your thermostat first. This is especially pertinent if the weather is temperate, and you haven’t been relying on your heat or air conditioning much.

Our Pros Can Solve Nest Thermostat Problems

If you’ve attempted Nest thermostat troubleshooting without help but can’t solve the dilemma, a smart thermostat pro including one from Colvin's Heating and Cooling can assist you. We can diagnose the issue and install a C-wire, if necessary.

Smart thermostats such as the Nest are created to make your life simpler, by automatic energy-efficient programming and the option to check settings while you’re away from home. It’s a time-consuming experience when yours won’t work correctly, but our heating and cooling experts at Colvin's Heating and Cooling can fix the trouble in no time.

If you’re experiencing strange heating and cooling behavior with your new Nest, call us at 816-379-3918 to book your appointment now.