Honeywell T7516A User Manual page 9

As the batteries run low, the thermostat display
sequence includes an indication of this. The
low battery indication appears one to two
months before the batteries run out completely.
Replace the batteries as soon as possible after
the indication appears.
You need two AA alkaline batteries (not
supplied); non-alkaline batteries do not last as
long, and can leak, damaging the thermostat or
wall surface. To replace the batteries:
1. Use a coin to carefully remove the
battery door (see Fig. 4).
2. Follow the directions on the label
revealed by removal of the battery door.
M1719C
Fig. 4. Battery Door Removal.
9
REMOVING
BATTERY
DOOR
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