FAQ 2 페이지 > (주)유니코하이테크

1. If there is melody sounds or red light on or key pad flashes in X after putting in password, it will be password error.  If you enter the wrong password three times in a row, a warning tone will be generated, the Key pad will flash, and the operation will be stopped for one minute.

2. It will be battery discharge, if there is melody only without working. Please open the door with 9V battery to connect with emergency power terminal which is on the outer body.

3. If the double locking security mode is set from inside, there will be quick beep sounds after enter the password from outside. The double locking should be unset from inside.

4. If the door does not open immediately after entering the password, and any number appears, dual security mode is set. Press the additional numbers sequentially to open the door.

1. If the door lock sounds melody only without working, it may be due to low battery. Please replace new batteries. You has to use Alkaline batteries and do not use new one with existing low batteries or do not mix with other battery brand. This can cause a mechanical failure.

2. If there is lock working sound and after 3times open/close working and melody sounds but door is not opened, it may be due to either door itself falls or the door or compartment fails to function properly, causing the deadbolt is stuck in a shackle and not operate smoothly. In this case, try push/pull the door strongly or open the door with lifting it slightly. If door is open with this action, should check the door itself.

3. For cases other than No. 1 or 2, please contact our service center.

1. Either door itself falls or the door compartment fails to function properly, causing the deadbolt is stuck in a shackle and not operate smoothly.

   First, check the operation of the square lock (deadbolt) while the door is open and if there is no problem, you must check the door itself. 

   ​Please contact to a professional door company to check the door itself.

2. If the square-locking device (deadbolt) is not operating smoothly while the door is open, please call the service center.