We installed a Honeywell TH8000 programmable thermostat today in a residential home. The package also includes a Honewell C7089 Outdoor Sensor. After double/triple checking wiring, we are still unable to get the Thermostat display unit to show the outside temperature.
The installation manual indicates that the installer must use setup number 0340 to "install" the outdoor temperature sensor for display etc. The manual does not tell how to enter the install setup phase.
As this is a new type thermostat for us to install, we need to know how to enter the installer setup phase of the thermostat and if this requires a "special tool". Any help is greatly appreciated.