Honeywell T4 Pro User Manual page 15

● Keypad Lockout:
● Adaptive Intelligent Recovery:
the temperature you want and turns on the heating or cooling system earlier to make sure you're
comfortable at the time you expect.
● Built-in Compressor Protection: Forces the compressor to wait for a few minutes before
restarting to prevent damage.
● Battery Replacement:Alkaline batteries are recommended. Low battery warning appears when
batteries need to be replaced.
● Alerts : Low Battery Warning, Air Filter Reminder
● Troubleshooting:
Off, Part, On
Thermostat "learns" how long it takes your system to reach
Display is blank, Heating or cooling system does not respond