ㆍCheck if the battery is defective or if it is inserted in the correct polarity.

ㆍCheck if the battery is completely discharged.

ㆍReplace all batteries with new ones.

*When the door cannot be opened due to the battery exhaustion.

1. Prepare a 9V battery and connect the battery to the emergency power supply terminal.

2. Touch [Number Plate] and enter [Password].

3. Press [*], and the locked state ends with a confirmation tone sounding.

ㆍDo the registration again by referring to the password registration/change method in the user manual.

ㆍCheck if the registered pin-code entered correctly.

ㆍIf the lamp of the numeric plate turns off while entering the password, the input does not take effect. Touch the numeric plate to light it up, and then enter the password again (If you do not enter within 7 seconds, the number plate will turn off automatically).

ㆍIn case of battery discharge, try again using 9V emergency power.

ㆍCheck if there is any foreign matter between the door and the door frame.

ㆍThe locking device may be broken. Please contact the service center.

ㆍIt is a warning sound notifying when to replace the battery.

ㆍWhen the beep sounds, immediately replace all batteries with new ones.

ㆍSet it to the automatic mode again.

ㆍWhen the battery is discharged, only the operation sound is generated and it does not work. Replace all batteries with new ones.