21
69-1153
two months before the batteries run out com-
pletely. Replace the batteries as soon as
possible after the indicator starts flashing.
You will need two AA alkaline batteries; non-
alkaline batteries will not last as long, and can
leak, causing damage to the thermostat or the
wall surface. We recommend Energizer®
batteries.
• Use a coin to carefully remove the battery
door.
• Press down on the left ends of the batteries
to remove them.
• Install the fresh batteries as shown in Fig. 3.
Make sure positive and negative terminals
are oriented correctly.
• Replace the battery door.
INSTALL TWO AA ALKALINE
BATTERIES AS SHOWN
M7905
Fig. 3. Battery replacement