Honeywell RTH6400 Series - System Setup and Configuration

RTH6400
13 69-2210EF—03
About your new thermostat
SETUP WIRING ASSISTANCE TROUBLESHOOTING
M28348
Press and hold the s and FAN buttons until the screen
changes (approximately 5 seconds).
System setup
SettingFunction
Done Next
1
0
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Press s or t to change settings.
Press NEXT to advance
to next function.
Press DONE to exit
and save settings.