How do I find out the model number of my Honeywell Home thermostat?
You can find the number, composed of either 3 or 4 letters followed by numbers, on one of the lower corners on the front of the box, or possibly on the back of the thermostat.
On the back of the thermostat
The number can be found on the back of your thermostat. The letters indicate the model.
On the box of the thermostat
The number can be found on the lower edge of the box. The letters indicate the model.
On the thermostat screen (T5 and T6)
The model number can be accessed using the menu on the screen of the thermostat.
On the thermostat screen (T9 and T10)
The model number can be accessed using the menu on the screen of the thermostat.
