Honeywell Lyric T5 Smart Thermostat

Factory Reset Instructions

  1. Press and hold Menu.
  2. Press right arrow until you see Reset, and then select it.
  3. Press right arrow until you see Factory Reset, and then select it.
  4. Congratulations! You've reset your device! You are now complete.

Forgotten PIN

  1. On the back of the unit is a serial number (S/N) and then four digits to the right of the S/N. Add 1234 to the four digits and you get the PIN.