11
OPERATING THE THERMOSTAT
Installing or replacing the batteries
You can install batteries in your thermostat so that if the power goes out, the display
will still show the indoor temperature.
In some situations, batteries are also the power source. Then, two AA batteries
should last about one year. When the batteries have lost about one−third of their
power, a battery icon appears on the display. Two−thirds of it will be black. As the
batteries get weaker, the icon goes down to one black bar and then none. When the
icon is empty, you will begin to lose thermostat functions when it is battery
powered. When the batteries are completely dead, you won’t be able to use the
thermostat.
When using batteries for power, we recommend that you replace the batteries at the
one bar level with two AA alkaline batteries. They’re in the back of the thermostat,
so you’ll have to remove it from the wall.
Here’s how to both install and replace batteries.
1. Locate the latch at the top of the thermostat. It’s at the
center of the top rim.
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