Battery Replacement - Honeywell RTH111 Series Operating Manual

Battery replacement

Pull at bottom to
remove thermostat
from wallplate.
Turn thermostat over,
insert fresh AAA alkaline
batteries, then reinstall
thermostat.
RTHXXXX
M32707
69-2731ES_A.indd 9
Install two fresh AAA batteries when
Lo Batt flashes on the screen. Lo
Batt appears for 60 days before the
batteries are depleted.
W/ Not
Aux Used
Replace batteries once a year, or
when you will be away for more than
a month.
The settings are stored in non-volatile
(permanent) memory and are thus
preserved when the thermostat is
Fan
Fan
Heat Off Cool Heat Off Cool Auto On Auto On
M33588
without batteries.
Set the System switch to Off before removing the
batteries. Otherwise, the heating/cooling system
could remain activated even when batteries are
removed.
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RTH111
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