If, for any reason, you desire to return all the stored settings back to
the factory default settings, follow the instructions below.
Page 22.2
Resetting the Thermostat to the
Factory Default Settings
(for default values see page 24.1)
WARNING: This will reset all Time Period and Advanced
Programming to the default settings. Any information entered
prior to this reset may be permanently lost.
Place the thermostat in the
OFF mode.
Press
button. While holding the
MODE button, press and hold
the FAN button for 5 seconds.
All icons will appear on the
display.
and hold the MODE
After all of the icons appear,
release the MODE and FAN
buttons. Then press and hold
the FAN button for 5 seconds.
After the letters
Fd
appear on
the display (Factory Default),
release the FAN button. Press
the MODE button
once
to
return to normal operation.
OFF
OFF
I2:00
I2:00
72
72
Pm
Pm
FAN
FAN
MODE
MODE
MODE
A
UX
H
EAT
C
OOL
AUTO
OFFON
Morning
DayNight
Evening
FanOn
Am
I8:88
SuMoTuWeThFrSa
Service Filter
Pan UV Light
Program On
StartStop
DeHumidify
I88
Setup
Outside
Vacation
Pm
88
L
O
H
I
88
Su
22
Summary of Contents for T1 900
Page 5: ......
