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 you can buy. And for good reason. It picks up on your temperature preferences and develops 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 raise and lower temps 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 smart idea to visit the Nest thermostat compatibility checker before getting one. Don’t forget to check with your energy company for valuable rebates, since 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 on your own or contact a HVAC professional like Jent Mechanical LLC. If you’re installing it yourself, you’ll spot 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 the majority of cases, Nest says this isn’t an issue as the thermostat can draw ample power from other heating and cooling wires.

In some cases, your heating and cooling system could have to have 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The Google Nest Thermostat is a step up from outdated programmable thermostats that use a combination of wiring and AA batteries for power.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 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 ample juice, Nest says you could run into some of these problems:

  1. Short 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 making odd noises, like 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 notice on your Nest thermostat’s screen, like “heating is delayed for 2:30 minutes.”
  8. The system fan is always running, won’t run or turns off and on rapidly in a short period of time.

You could believe something is wrong with your heating and cooling system, but if you just installed the Nest, we recommend you begin with your thermostat first. This is especially true if the weather is mild, and you haven’t been relying on your heat or air conditioning much.

Our Specialists Can Resolve Nest Thermostat Issues

If you’ve gone through Nest thermostat troubleshooting on your own but can’t solve the dilemma, a smart thermostat pro such as one from Jent Mechanical LLC can assist you. We can determine the malfunction and add a C-wire, if necessary.

Smart thermostats like the Nest are designed to make your life simpler, with automatic energy-efficient programming and the opportunity to monitor 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 Jent Mechanical LLC can fix the issue in no time.

If you’re going through unexplained heating and cooling behavior with your new Nest, give us a call at 937-845-1111 to book your appointment today.