Step #3 | Installation and Battery Replacement |
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To Open The Thermostat
The top of the thermostat housing has two (2) screw-
driver slots to assist when seperating. 
SCREWDRIVER
SLOTS
To pull the housing apart, insert a small blade screw- driver into the slot and rotate 90 . This will release the top housing snaps. 
Repeat the procedure in the other screw driver slot.
Separate the housing halves by pulling the top forward until the pins release, and then lift the bottom out.
The batteries must be replaced immediately when the thermostat displays the Low Battery code (fig.1).
FIG. 1
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