Why Your Nest Thermostat Isn't Working and How to Solve the Problem

April 13, 2021

The Nest thermostat is one of the top-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 by geofencing with your phone, the Nest Learning Thermostat and Nest E are aware of when you’re at your residence or away and can adjust temps to help you save even more.

The Nest can be used with a full range of 24-volt heating and cooling systems, but it’s always a good idea to check the Nest thermostat compatibility checker before purchasing one. Don’t forget to talk with your energy company for valuable rebates, because you could 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 on your own or hire a HVAC pro like Aggressive Mechanical. If you’re putting it in yourself, you’ll see a terminal for the C-wire, or common wire. This wire is solely used for powering your thermostat. If your home 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 pull ample power from other heating and cooling wires.

In some instances, your heating and cooling system may need that C-wire. And here’s why.

Why Your Nest Keeps Losing Power and Other Malfunctions

The Google Nest Thermostat is better than outdated programmable thermostats that use a combination of wiring and AA batteries for power.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 run your heating and cooling system.

8 Common Nest Thermostat Malfunctions

If it can’t receive ample juice, Nest says you could experience some of these troubles:

  1. Short battery life.
  2. Thermostat motion sensing won’t operate.
  3. Your thermostat every now and then disconnects from Wi-Fi.
  4. Your system suddenly turns on or off, or won’t stop running.
  5. Your system is making 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 constantly on, won’t turn on or turns off and on repeatedly in a short period of time.

You might believe something is suspect with your heating and cooling system, but if you just started using the Nest, we recommend you check your thermostat initially. This is especially true if the weather is moderate, and you haven’t been relying on your heat or air conditioning consistently.

Our Specialists Can Fix Nest Thermostat Problems

If you’ve gone through Nest thermostat troubleshooting by yourself but can’t fix the problem, a smart thermostat specialist including one from Aggressive Mechanical can support you. We can pinpoint the issue and install a C-wire, if necessary.

Smart thermostats including the Nest are designed to make your life more convenient, with automatic energy-efficient programming and the opportunity to keep an eye on settings while you’re out. It’s a frustrating experience when yours won’t operate correctly, but our heating and cooling professionals at Aggressive Mechanical can take care of the issue in no time.

If you’re going through atypical heating and cooling behavior with your new Nest, reach out to us at 732-806-5536 to request your appointment right away.