Battery Replacement - Honeywell RTH7600 Operating Manual

Battery replacement/Customer assistance
Grasp thermostat and pull to
remove from wallplate
M28419
Insert 2 fresh AA alkaline batteries
M28420
Batteries are optional (to provide backup power) if
your thermostat was wired to run on AC power when
installed.
Install fresh batteries immediately when the LO BATT warning
begins flashing. The warning flashes about 30 days before
batteries are depleted.
Even if the warning does not appear, you should
replace batteries once a year, or before leaving home
for more than a month.
For assistance with this product, please visit
http://DIYthermostats.honeywell.com
or call Honeywell Customer Care toll-free at
1-800-468-1502.
17
RTH7600
69-2207ES—03