Kwikset HC620 Z-Wave lock - unknown/unavailable but still responsive to lock/unlock commands | Home Assistant | Page 1

onyx lark Jul 27, 2025, 4:06 PM

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I'm hoping for ideas on how to troubleshoot an issue with one of my Z-Wave locks. The lock appears in Home Assistant, responds to automations and manual lock/unlock commands, but the lock's current status is always showing as "unknown" and the lock's sensor entities either as "unknown" or "unavailable". I'd like to set up automations that work with the lock's state, but can't if the information isn't showing in HA. I've tried re-interviewing the device and it shows as connected properly despite the "unknown" entities. Any suggestions on next steps for troubleshooting would be welcome. The lock is connected via a Zooz ZAC93 HAT attached to my HA Yellow, and is only one of three Z-Wave devices (the other two, including one other different-model lock, work as expected).

placid bronze Jul 27, 2025, 5:38 PM

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Can you check the signal strength /RSSI of that device and signal noise /background RSSI of the controller?
Both should be disabled by default diagnostic entities

onyx lark Jul 27, 2025, 6:40 PM

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placid bronze Can you check the signal strength /RSSI of that device and signal noise /backgro...

RSSI of the device is -86dBm, and the controller average background RSSI is -102dBm. (I don’t know if those are good or bad)

placid bronze Jul 27, 2025, 6:40 PM

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That's okay

#Kwikset HC620 Z-Wave lock - unknown/unavailable but still responsive to lock/unlock commands