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

April 13, 2021

The Nest thermostat is one of the best-selling smart thermostats you can buy. And for good reason. It learns your temperature preferences and makes an energy-efficient schedule to match. And through geofencing with your phone, the Nest Learning Thermostat and Nest E realize when you’re at your home or out and about and can adjust temperatures to help you save even more.

The Nest is compatible with a wide range of 24-volt heating and cooling systems, but it’s always a smart idea to check the Nest thermostat compatibility checker before installing one. Don’t forget to check 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 hook it up yourself or call a HVAC pro like Lanz Furnace and Fireplace. 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 home or HVAC system is older, you might not have one of these wires. In most cases, Nest says this isn’t a problem because the thermostat can pull enough power from other heating and cooling wires.

Sometimes, your heating and cooling system might 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 older 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 operate your heating and cooling system.

8 Common Nest Thermostat Problems

If it can’t get adequate power, Nest says you may experience some of these issues:

  1. Poor battery life.
  2. Thermostat motion sensing won’t work.
  3. Your thermostat every now and then disconnects from Wi-Fi.
  4. Your system abruptly turns on or off, or won’t stop running.
  5. Your system is producing 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 notification on your Nest thermostat’s screen, like “heating is delayed for 2:30 minutes.”
  8. The system fan is continuously on, won’t switch on or turns off and on rapidly in a short period of time.

You may believe something is wrong with your heating and cooling system, but if you just started using the Nest, we suggest 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 Pros Can Solve Nest Thermostat Problems

If you’ve gone through Nest thermostat troubleshooting by yourself but can’t fix the issue, a smart thermostat professional like one from Lanz Furnace and Fireplace can provide support. We can narrow down the malfunction and add a C-wire, if necessary.

Smart thermostats like the Nest are made to make your life easier, with automatic energy-efficient programming and the ability to monitor temperatures while you’re on the go. It’s an annoying experience when yours won’t work like it should, but our heating and cooling professionals at Lanz Furnace and Fireplace can resolve the problem in no time.

If you’re running into atypical heating and cooling behavior with your new Nest, call us at 608-291-3606 to set up your appointment right away.