Why Your Nest Thermostat Isn't Running Right 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 figures out your temperature preferences and makes 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 house or out and about and can adjust temps to help you save even more.

The Nest works with a full 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 made sure it’s compatible, you can either wire it yourself or hire a HVAC professional like A&M Heating & Cooling LLC. If you’re wiring it without help, you’ll notice 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. In most cases, Nest says this isn’t a setback since the thermostat can get adequate power from other heating and cooling wires.

Sometimes, your heating and cooling system may require 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 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 operate your heating and cooling system.

8 Common Nest Thermostat Issues

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

  1. Poor battery life.
  2. Thermostat motion sensing won’t work.
  3. Your thermostat occasionally disconnects from Wi-Fi.
  4. Your system abruptly turns on or off, or won’t shut off.
  5. Your system is producing weird noises, like 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, 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 rapidly in a short period of time.

You could worry something is wrong with your heating and cooling system, but if you just started using the Nest, it’s best to check your thermostat initially. This is especially true if the weather is temperate, and you haven’t been running your heat or air conditioning consistently.

Our Professionals Can Resolve Nest Thermostat Issues

If you’ve tried Nest thermostat troubleshooting on your own but can’t fix the problem, a smart thermostat professional including one from A&M Heating & Cooling LLC can provide support. We can identify the problem and add a C-wire, if needed.

Smart thermostats like the Nest are made to make your life simpler, through automatic energy-efficient programming and the option to monitor temperatures while you’re away from home. It’s an annoying experience when yours won’t operate like it should, but our heating and cooling professionals at A&M Heating & Cooling LLC can resolve the issue quickly.

If you’re going through odd heating and cooling behavior with your new Nest, call us at 520-200-1048 to set up your appointment right away.