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Battery replacement
Batteries are optional (to provide backup
power) because your Comfort Control was
wired to run on AC power when installed.
Install fresh batteries immediately when the
REPLACE BATTERY warning begins flashing.The
warning flashes about two months before
the 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.
If batteries are inserted within two minutes,
the time and day will not have to be reset.
All other settings are permanently stored in
memory, and do not require battery power.
Press and pull to remove
Insert fresh AA alkaline
batteries, then reinstall
battery holder
Replace Battery