24/7 Emergency Support

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

April 13, 2021

The Nest thermostat is one of the top-selling smart thermostats you can buy. And for good reason. It picks up on your temperature preferences and creates an energy-efficient schedule to match. And by geofencing with your phone, the Nest Learning Thermostat and Nest E know when you’re at your home or away and can raise and lower temperatures 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 visit the Nest thermostat compatibility checker before purchasing one. Don’t forget to check with your energy company for valuable rebates, as you could be able to get a Nest for free or close to it.

Once you’ve confirmed it’s compatible, you can either wire it without help or hire a HVAC professional like Controlled Comfort HVAC Inc. If you’re putting it in on your own, 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 setback as the thermostat can get enough power from other heating and cooling wires.

Sometimes, your heating and cooling system may need 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 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 connect to Wi-Fi, power its digital display and operate your heating and cooling system.

8 Common Nest Thermostat Problems

If it can’t draw adequate power, Nest says you might have some of these problems:

  1. Poor battery life.
  2. Thermostat motion sensing is disabled.
  3. Your thermostat sometimes disconnects from Wi-Fi.
  4. Your system unexpectedly turns on or off, or won’t shut off.
  5. Your system is making strange 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 message on your Nest thermostat’s screen, like “heating is delayed for 2:30 minutes.”
  8. The system fan is continuously working, won’t switch on or turns off and on repeatedly 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 begin with your thermostat first. This is especially pertinent if the weather is moderate, and you haven’t been using your heat or air conditioning much.

Our Specialists Can Resolve Nest Thermostat Troubles

If you’ve attempted Nest thermostat troubleshooting by yourself but can’t solve the problem, a smart thermostat pro including one from Controlled Comfort HVAC Inc can provide assistance. We can identify the malfunction and add a C-wire, if required.

Smart thermostats like the Nest are designed to make your life more convenient, through automatic energy-efficient programming and the opportunity to monitor settings while you’re away from home. It’s a frustrating experience when yours won’t work properly, but our heating and cooling professionals at Controlled Comfort HVAC Inc can take care of the problem quickly.

If you’re going through strange heating and cooling behavior with your new Nest, give us a call at 224-412-8308 to book your appointment now.