8 • Schlage • CO-250 user guide
Batteries
To install or replace alkaline batteries
L
For coin cell battery installation or replacement, refer to instructions at www.schlage.
com/support.
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Battery voltage can be checked with the SUS.
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Changing batteries does not affect any programmed data.
1. Remove the battery cover.
2. Remove the battery bracket.
Do not allow the battery pack to hang from the wires.
3. Install the new batteries (install only new AA Alkaline batteries). Make sure the batteries
are installed in the correct orientation.
4. Reinstall the battery pack and battery bracket.
5. Reinstall the battery cover, making sure the plug is to the right of the battery pack (CY, MS
and MD locks). Be careful not to pinch the battery wires when installing the battery cover.
CAUTION! Danger of explosion if batteries are incorrectly replaced! Replace only with
the same or equivalent type. Dispose of used batteries according to the manufacturer’s
instructions.
This product has been evaluated for ULC-S319 compliance with Duracell Procell
PC1500 AA alkaline batteries and Panasonic CR2025 lithium coin cell. For installations
requiring ULC-S319, these battery models should be used.
CY, MS, & MD
993
!
Plug MUST Be on Right
Low battery indications
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Replacement of batteries does not affect programmed data. Battery voltage can be
checked with the SUS.
Condition
Indicator
Solution
Batteries low
After credential is presented, 9 red
blinks of Schlage button (Left = AA
batteries, Right = coin cell battery),
then normal indicator.
Replace batteries immediately to
avoid battery failure. Lock is intended
to operate for 500 cycles in low
battery condition.
Battery failure
(configured by
SUS)
No LED or beeps
Valid credentials do not grant access
Replace batteries immediately.
Mechanical override key must be used
to unlock the lock.
