How do I change my Honeywell FocusPRO6000 TH6110D1005 thermostat to from Fahrenheit to Celsius?

The first link is operators manual.

The second is installation and contains the procedure to set many functions including the display temperature.

https://customer.honeywell.com/resources/techlit/TechLitDocuments/69-0000s/69-2577ES.pdf

See page 15 function set 14. This sets F or C temperature
https://customer.honeywell.com/resources/techlit/TechLitDocuments/69-0000s/69-2578ES.pdf

hope this helps?

Press and hold up and down temp buttons together to enter settings menu. Then press up to option 14. Press down to change to option 0 (Fahrenheit). 1 is Celsius. Press up and down together to save and exit. Good Luck!!

If you need further help, reach me via phone at https://www.6ya.com/expert/thomas_092728000e6acb79

It has to be done in the system setup ( install) menu, instructions are here but don't change anything you don't understand it as you can ruin your system. https://customer.honeywell.com/resources/techlit/TechLitDocuments/69-0000s/69-2382ES.pdf

You can do this during the setup of the thermostat.


1-800-honeywell
www.honeywell.com,

To start you have to push and hold the up and down buttons simultaneously until the screen displays "setup" across the top. There will be a number on the left, and a number in the right. Press the UP arrow until the number on the left reads 14, The number on the right should read 0. Press the DOWN arrow to change it to 1. Once this has been done you can press the RUN button to save the changes, and exit the setup screen. Your display will now read Celsius,

Inside the thermostat (behind) are 3 tiny DIP switches.Switch #3 should be set to OFF or click it to the left to display *F.You can use a tiny scerwdriver

need a model number

If you need further help, reach me via phone at https://www.6ya.com/expert/thomas_092728000e6acb79

Your manual is here: http://customer.honeywell.com/techlit/pdf/PackedLit/69-2210EF.pdf

When you do your system setup, Function 320 controls your temp. format. Set Function 320 to 1(celsius); Then press DONE. This will solve your problem.( Function 320 is defaulted to 0-Farenheit).

My thermostat was set on celsius and couldn't get it to change back to fahrenheit. My son suggested pressing both up and down arrow buttons at the same time and it worked. It changed back to fahrenheit.