Symptoms
- Code entered is rejected repeatedly
- Keypad lights up but denies access
- Code worked before but suddenly stopped
Likely causes
- CommonCode was changed or expiredShared or temporary codes are sometimes set to expire automatically.
- CommonLow battery affecting code recognitionA weakening battery can cause the lock to intermittently reject valid codes.
- PossibleWrong code being enteredIt's easy to mix up similar codes, especially with multiple household members.
- PossibleLockout after multiple failed attemptsMany smart locks temporarily disable the keypad after repeated wrong entries as a security measure.
- Less commonKeypad or lock malfunctionAfter ruling out the above, a hardware issue is possible.
What to do
- Wait a minute or two in case the keypad is in a temporary lockout after failed attempts.
- Check the app or with whoever manages the lock's codes to confirm the code hasn't been changed or expired.
- Replace the batteries, since low power is a common cause of code rejection.
- Try entering the code slowly and clearly, pressing the confirm or pound key if your model requires it.
- Try a different valid code, like a backup or master code, to isolate whether the issue is with one specific code or the whole system.
- If no code works and batteries are fresh, try physical key access and check the lock's app for error messages.
Tools and parts
- Fresh batteries
- Physical backup key
When to call a pro
Contact the lock manufacturer's support if no codes work despite fresh batteries, since the keypad or lock module may need service.
Safety
Generally low risk
Generally low risk for a careful person. Stop if anything looks different from what this guide describes.