Why Your Nest Thermostat Isn't Running Right and How to Repair 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 makes an energy-efficient schedule to match. And through geofencing with your phone, the Nest Learning Thermostat and Nest E know when you’re at your home or gone and can raise and lower settings to help you save even more.

The Nest works with a vast range of 24-volt heating and cooling systems, but it’s always a wise idea to visit the Nest thermostat compatibility checker before getting one. Don’t forget to talk with your energy supplier for valuable rebates, because you could 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 without help or hire a HVAC professional like Kilbourne Heating & AC. If you’re installing it without help, you’ll notice a terminal for the C-wire, or common wire. This wire is only 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 problem since the thermostat can draw adequate power from other heating and cooling wires.

Sometimes, your heating and cooling system might require that C-wire. And here’s why.

Why Your Nest Keeps Losing Power and Other Malfunctions

The Google Nest Thermostat is an improvement from older programmable thermostats that use a combination of wiring and AA batteries for power. It uses a rechargeable lithium-ion battery and wiring to link to Wi-Fi, power its digital display and operate your heating and cooling system.

8 Common Nest Thermostat Malfunctions

If it can’t draw enough juice, Nest says you might run into some of these troubles:

  1. Poor battery life.
  2. Thermostat motion sensing won’t work.
  3. Your thermostat occasionally disconnects from Wi-Fi.
  4. Your system suddenly turns on or off, or won’t turn off.
  5. Your system is creating strange noises, such as chattering, stuttering, clicking or thumping.
  6. Heating or cooling is short cycling, or frequently 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 on, won’t run or turns off and on repeatedly in a short period of time.

You could believe something is suspect with your heating and cooling system, but if you just installed the Nest, we advise you check your thermostat right away. This is especially timely if the weather is moderate, and you haven’t been using your heat or air conditioning frequently.

Our Professionals Can Resolve Nest Thermostat Problems

If you’ve gone through Nest thermostat troubleshooting by yourself but can’t solve the issue, a smart thermostat specialist including one from Kilbourne Heating & AC can assist you. We can diagnose the malfunction and add a C-wire, if required.

Smart thermostats like the Nest are created to make your life more convenient, through automatic energy-efficient programming and the option to keep an eye on temperatures while you’re away from home. It’s an annoying experience when yours won’t run correctly, but our heating and cooling specialists at Kilbourne Heating & AC can fix the problem in no time.

If you’re running into weird heating and cooling behavior with your new Nest, call us at 561-287-7071 to request your appointment now.