Honeywell RTH2300 Series Operating Manual page 18

Operating Manual
Change filter (RTH2300 only)
Set
Hold
Run
69-2727EF—03
Change Filter – Press & Hold Run to Reset
6 : 30
75
Set
am
If the filter reminder is turned on during
installation, the words Change Filter will flash
on the screen when the filter needs to be
replaced.
After you replace the air filter, press and hold
M33632
the RUN button for 3 seconds to reset the alert.
16