4-3. Do-it-yourself maintenance
Replace the battery with a new one if it is discharged.
■ You will need the following items:
● Small Phillips-head screwdriver
● Lithium battery (CR1616)
■ Replacing the battery
Remove the screw and cover.
Push the cover in the arrow
direction.
Remove the module.
Remove the 2 screws to take
out the lid.
Insert a new battery with the “+”
terminal facing up.