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

April 13, 2021

The Nest thermostat is one of the best-selling smart thermostats you can get. And for good reason. It picks up on your temperature preferences and develops 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 residence or away and can raise and lower temperatures to help you save even more.

The Nest is compatible with a full 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 contact your energy company for valuable rebates, as you might 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 call a HVAC pro like Carefree Heating and Cooling, LLC. If you’re installing it without help, you’ll see a terminal for the C-wire, or common wire. This wire is just used for powering your thermostat. If your residence or HVAC system is older, you might not have one of these wires. Most of the time, Nest says this isn’t a problem as the thermostat can get adequate power from other heating and cooling wires.

In some cases, your heating and cooling system may have to have that C-wire. And here’s why.

Why Your Nest Keeps Losing Power and Other Malfunctions

The Google Nest Thermostat is a step up from aging 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 sync with Wi-Fi, power its digital display and turn on your heating and cooling system.

8 Common Nest Thermostat Issues

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

  1. Bad battery life.
  2. Thermostat motion sensing won’t operate.
  3. Your thermostat sometimes disconnects from Wi-Fi.
  4. Your system abruptly turns on or off, or won’t stop running.
  5. Your system is creating odd noises, including 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 continuously working, won’t run or turns off and on repeatedly in a short period of time.

You may think something is wrong with your heating and cooling system, but if you just installed the Nest, it’s best to start with your thermostat first. This is especially true if the weather is moderate, and you haven’t been using your heat or air conditioning frequently.

Our Specialists Can Resolve Nest Thermostat Issues

If you’ve attempted Nest thermostat troubleshooting by yourself but can’t fix the issue, a smart thermostat pro including one from Carefree Heating and Cooling, LLC can provide support. We can diagnose the issue and install a C-wire, if necessary.

Smart thermostats including the Nest are designed to make your life simpler, through automatic energy-efficient programming and the option to monitor settings while you’re away from home. It’s an annoying experience when yours won’t run correctly, but our heating and cooling pros at Carefree Heating and Cooling, LLC can resolve the problem fast.

If you’re going through unexplained heating and cooling behavior with your new Nest, reach out to us at 513-268-5164 to schedule your appointment now.