Honeywell Electronic Programmable Thermostat - Manual (Page 10)

69-0862—2 10
Maintaining Your Thermostat
INSTALLING BATTERIES
IMPORTANT
Batteries must be installed for programming
and operation of the thermostat and heat-
ing/cooling system.
1. Purchase two AA alkaline batteries;
nonalkaline batteries do not last as long, and
can leak, causing damage to the thermostat or
wall surface. We recommend Energizer®
batteries.
2 Make sure the thermostat is set in the
OFF position.
3. Use a coin to remove the battery door.
4. Install the fresh batteries, making sure the
positive and negative terminals are oriented
correctly.
5. Replace the battery door.
As the batteries are running low, the bAt Lo
indicator flashes for one to two months before
the batteries run out completely. Replace the
batteries as soon as possible after the indicator
starts flashing.
M5781