Display Screen - Honeywell PRO TH3000 Series Owner's Manual

Operating Manual
Current inside temperature Temperature setting
Low battery warning
(see page 9)
System Status
• Cool On: Cooling system is on.
• Heat On: Heating system is on.
• Ern: Emergency heat is on. **
• Aux: Auxiliary heat is on. **
** Only for heat pumps with this capability
(select models only).
4
tf "Heat On" or "Cool
On" is flashing, com-
pressor protection is
engaged (see page 8).