Tag: Honeywell RTH8500D

Honeywell RTH8500D Touch Screen Programmable Thermostat  Prepare for Installation Check that the following items are included: If any of the items shown above are missing, call Honeywell Customer Care at 1-800-468-1502 before returning the thermostat to the store. Check that you have everything required for the installation: Three AAA alkaline batteries No. 2 Phillips screwdriver…