Installer Options; Replacing Batteries - Honeywell TH8110R1008/U User Manual

Installer options

Installer options require a password and
should only be changed by a qualified
technician.
To prevent unintended changes or
damage to your equipment, do not
change these options yourself.
Replacing thermostat batteries
Install fresh batteries when the
REPLACE BATTERIES warning begins
flashing. The warning flashes about 60
days before batteries are depleted.
Even if the warning does not appear, it
is recommended to replace batteries
once a year, or before leaving home for
more than a month.
Press the release button on top of
the thermostat to remove it from the
wall plate. Install 4 fresh AA alkaline
batteries.
69-2761EFS—03
Button
Thermostat
16
Installer Options
Enter password
0 0 0 0
Replace Batteries
Press HERE for info
Wallplate
M34071
MCR34100
MCR33976
MCR33977
MCR34144
Thermostat
(back view)