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

April 13, 2021

The Nest thermostat is one of the most popular smart thermostats you can get. And for good reason. It learns your temperature preferences and creates an energy-efficient schedule to match. And using geofencing with your phone, the Nest Learning Thermostat and Nest E realize when you’re at your residence or away and can adjust settings to help you save even more.

The Nest can be used with a vast range of 24-volt heating and cooling systems, but it’s always a wise idea to check the Nest thermostat compatibility checker before installing one. Don’t forget to contact your energy supplier for valuable rebates, since 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 hook it up without help or contact a HVAC specialist like M & S Heating & Air LLC. If you’re putting it in on your own, you’ll notice a terminal for the C-wire, or common wire. This wire is solely 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 draw enough power from other heating and cooling wires.

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

Why Your Nest Keeps Losing Power and Other Malfunctions

The Google Nest Thermostat is a step up from older programmable thermostats that rely on a combination of wiring and AA batteries for power. It has a rechargeable lithium-ion battery and wiring to link to Wi-Fi, power its digital display and run your heating and cooling system.

8 Common Nest Thermostat Malfunctions

If it can’t receive enough juice, Nest says you may encounter 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 unexpectedly turns on or off, or won’t turn off.
  5. Your system is making weird 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, such as “heating is delayed for 2:30 minutes.”
  8. The system fan is always running, won’t turn on or turns off and on frequently in a short period of time.

You might think something is wrong with your heating and cooling system, but if you just installed the Nest, we advise you check your thermostat first. This is especially true if the weather is temperate, and you haven’t been relying on your heat or air conditioning frequently.

Our Professionals Can Solve Nest Thermostat Problems

If you’ve attempted Nest thermostat troubleshooting by yourself but can’t repair the dilemma, a smart thermostat professional such as one from M & S Heating & Air LLC can support you. We can identify the problem and put in a C-wire, if needed.

Smart thermostats including the Nest are made to make your life more convenient, through automatic energy-efficient programming and the opportunity to check settings while you’re out. It’s an annoying experience when yours won’t work correctly, but our heating and cooling pros at M & S Heating & Air LLC can take care of the issue fast.

If you’re going through weird heating and cooling behavior with your new Nest, call us at 301-363-4699 to set up your appointment right away.