4-3. Do-it-yourself maintenance
Replace the battery with a new one if it discharges.
■ You will need the following items:
• Small Phillips-head screwdriver
• Lithium battery (CR1616)
Remove the screws.
Push the cover in the
direction of the arrow and
remove it.
Remove the module.
Remove the two screws
and the module cover.
Insert a new battery with
the + terminal facing up.