Honeywell Lyric T5 Smart Thermostat
Factory Reset Instructions
- Press and hold Menu.
- Press right arrow until you see Reset, and then select it.
- Press right arrow until you see Factory Reset, and then select it.
- Congratulations! You've reset your device! You are now complete.
- 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.