
8. Keypad Connector Check:
If the lock works intermittently, check for loose wires at the keypad connector (underside of the
2-battery keypad). It is a four-wire connection. Inspect each wire while pushing it and attempting
to gently rotate the wire where it enters the connector. If any motion is noted, try pushing in on
the wire to attempt to tighten it. Operate the lock with a valid code. If the looseness is still pres-
ent, S&G recommends replacing the lock.
9. Model Check Procedure:
There is a simple test to verify if your lock is a model 6120 or a 6123.
6123 will emit 1 single beep followed by 3 beeps, followed by another series of beeps
remain silent or emit 1 or
2 short beeps, depending on when it was manufactured.
10. Low Battery Warning Check Procedure:
Your lock is equipped with a low battery warning feature that changes the pitch of the sounder
when the batteries need to be replaced. It also incorporates a low battery tester and warning
demonstrator that simulates the low battery warning signal for one lock cycle. To operate the
demonstrator, press and hold the
key until three beeps are heard. Now enter a valid code
while listening to the sounder. If the sounder has changed pitch, the batteries are okay (although
it is always a good idea to check them with a voltmeter). If the sounder does not change pitch,
the lock was already in low battery mode when the demonstrator was engaged, and the batteries
should be changed before any further troubleshooting is attempted.
11. Safe Relock Device Engaged Check Procedure
It is possible for the safe’s relock device(s) to activate during shipment. If the safe has recently
been serviced or handled roughly during shipment, the relock device could be engaged. Use the
following procedure to verify this.
A) With the lock in the locked condition, note the amount of motion in the safe handle.
B) Locate the safe handle in the middle of its travel range, and operate the lock with a valid
C) As soon as the lock bolt retracts, again note the range of motion in the safe handle.
If the handle moves farther when the lock bolt is retracted, but the safe does not open, a relock
device is probably the cause. The service of a trained and experienced safe technician should be
employed. Contact the safe manufacturer for recommendations.
The Safe & Vault Technicians Association, based in Dallas, Texas, can refer you to a safe
technician in your area. The association’s number is (214) 827-7233.
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