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Nest thermostat stuck during startup

It’s normal for a Google Nest thermostat to take some time to start up after you reset or restart it. You’ll see an animation on the screen to let you know it’s making progress. But if this screen doesn’t go away after a minute or two, is frozen or stuck, follow these steps.

1. Check your wires

Important: Turn off power to your system at the breaker box, fuse box or system switch. This helps prevent damage to your system and keeps you safe.

  1. Pull the thermostat display off the base. 
  2. Check that all of the wires connected to your thermostat are fully inserted.
  3. The connector button should stay down on any connectors that have wires in them. If not, pull the wire out and check the tip.
  4. If the tip is corroded, bent or less than 1/3 inch of copper is exposed, straighten and/or re-strip the end of the wire.
  5. Press the connector button down and re-insert the wire. Push it in as far as it will go. Make sure the button stays down, indicating a properly seated wire.
thermostat connector button down

2. Reseat the Nest thermostat display

Make sure the thermostat display is properly connected to its base. 

  1. Pull the display off the base.
  2. Gently push the thermostat wires back into the wall. If they stick out, they can prevent the display from fully connecting to the base.
  3. Press the display back onto the base until you hear a click.

Note: If you used screws other than the ones included with your Nest thermostat to mount it to the wall, they can also prevent the display from attaching properly to the base.

3. Restart your Nest thermostat

Try restarting your Nest thermostat again if needed.

Thermostats with a ring (Nest Learning Thermostat or Nest Thermostat E)

  1. Press and hold the thermostat ring down until the display turns off.
  2. Release the ring and then press it once to begin startup again.
nest thermostat gen 3 nest thermostat e cooling

Thermostats with a touchbar (Nest Thermostat)

  1. Pull the display off the base.
  2. Remove the batteries and put them back in, then reattach the display to the base.
Nest Thermostat 3/4ths view
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