G-U BKS B-2393 Series

Questions and Answers

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Justin BallAug 9, 2025
Why do G-U BKS B-2393 unlock automatically?
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  jlewisAug 10, 2025
  If your G-U Door locks unlock automatically, the issue might stem from a continuous signal at the control input. Check the control signal at terminal I1 and I2. Another potential cause is incorrect cable assignment between the lock and controller, so verify the wiring. In some instances, a defective controller could be the culprit, requiring a replacement.
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christianrobertAug 14, 2025
What to do if the "Locked" signal does not appear on G-U Door locks?
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  allisonowensAug 14, 2025
  If the "Locked" signal does not appear for your G-U Door locks, it could be due to the "Locked by motor" relay contact not being assigned. Check the wiring of the signal input (BK, GY, BNGN) and signal output (terminal 41 and 51). Also, the lock may be unable to move to the initial position, so check the same wiring. Finally, check for any foreign object in the lock.
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Martha BaldwinAug 18, 2025
What to do if the "Unlocked" signal does not appear on G-U Door locks?
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  Kathryn SmithAug 18, 2025
  If the "Unlocked" signal does not appear for your G-U Door locks, the "Unlocked by motor" relay contact might not be assigned. Check the wiring of the signal output (terminal 42 + 52). The lock also may be unable to move to the final position, so check the same wiring. Lastly, look for any foreign object obstructing the lock's movement.
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Benjamin SantiagoAug 22, 2025
Why is latch monitoring without function on my G-U BKS B-2393 Door locks?
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  Stephanie NelsonAug 22, 2025
  If the latch monitoring is without function on your G-U Door locks, it could be that the latch monitoring is not assigned. Check the wiring of the signal output (terminal 44 + 54). Another possible cause is a jammed or damaged lever; if so, eliminate the cause of jamming.
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probertsonAug 27, 2025
Why is deadbolt monitoring not functional on G-U Door locks (B-2393x)?
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  Ronald BlevinsAug 27, 2025
  If the deadbolt monitoring is not functional on your G-U Door locks (only with B-2393x), the deadbolt monitoring may not be assigned. Check the wiring: Signal input (VT) Signal output (terminal 43 and 53). Another potential cause is a jammed or damaged lever, in which case you should eliminate the cause of jamming.
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Sarah YoungAug 31, 2025
Why does the motor run occasionally when daytime release is activated on G-U BKS B-2393?
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  sandovalshawnAug 31, 2025
  If the motor runs occasionally for short periods when daytime release is activated on your G-U Door locks, it may be because the "unlocked" sensor position is lost during daytime release. This can happen if the drive-gear dips (e.g. due to heavy vibrations). Check the closing speed and door strike at the door closer and reduce if necessary, providing it can still be ensured that the door leaf closes. Otherwise no remedial action is required.
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Nancy RandolphNov 5, 2025
How to troubleshoot G-U BKS B-2393 that do not unlock?
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  kennethspencerNov 5, 2025
  If your G-U Door lock does not unlock, several factors could be at play. First, ensure the controller is receiving at least 21 V DC, as a missing or faulty power supply could be the cause. Check the control input I1/I2 for a +24 V control signal. If using an emergency power backup, ensure it's properly connected and the jumper is removed. Mechanical blockages, such as a twisted door leaf or frame, a jammed active leaf, or screws pressing against the lock case, can also prevent unlocking. In such cases, remove the blockage and inspect the door components. Also, verify that the controller isn't in programming mode and that a test run has been successfully completed. Finally, if you have a B-2393x model, make sure the deadbolt of the active leaf is unlocked. If all else fails, check the wirin...