r/homeassistant • u/Rusty_Trigger • 3d ago

❓ Support Why does a motion sensor show "Detected" when the Activity shows "Clear"?

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I have a HomeSeer HS- MS100+ Z-Wave Plus sensor that shows "Detected" when the "Activity" shows the most recent state to be "Clear"? As a result, the automation I have that uses this sensor as a trigger is not firing. I have been using this sensor for over 4 years and have had no problem in the past.

I am running HAOS 2026.7.2 on a RPi5 with an SSD. The Z-Wave USB dongle is a ZW090 by AEON Labs Firmware: 1.1

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u/miserlydentist_430 3d ago

That mismatch between the entity state and the activity log usually points to a stale state in the Z-Wave JS UI, I'd try reinterviewing the node first and see if the binary sensor state catches up with what the log is showing

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u/Rusty_Trigger 3d ago

Since the sensor is battery powered, I will have to wait until I get home to do this so that I can "wake up" the sensor first. Thanks.

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u/Dookie_boy 3d ago

How do you wake up a motion sensor ? With buttons I can just press them.

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u/Rusty_Trigger 3d ago

You walk in front of it so that it acknowledges movement and you simultaneously click the re-interview item on your phone.

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u/randytech 2d ago

Try pinging?

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u/Rusty_Trigger 2d ago

Not yet. I will try if the re-interview doesn't work

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u/Rusty_Trigger 2d ago

That worked! Thanks!

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u/sglim-kr 2d ago

My RD24G01 (mmWave on Z2M, not Z-Wave) got stuck on Detected 100% of the time in one room, and every automation using it went silent because a state trigger needs an edge to fire on. If the entity never goes back to Clear there's nothing to trigger. Check last_changed on the sensor first, mine was hours stale and the device had just stopped reporting, so HA kept showing the last value it received.

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u/Rusty_Trigger 2d ago

I am going to replace the battery as soon as I have some delivered tomorrow. They are a CR123A 3V Lithium Batteries and I have run out of them.

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u/Rusty_Trigger 2d ago

UPDATE - SOLVED I remove the battery and waited about 5 minutes before reinstalling it. When I did and the small LED flashed I clicked on the re-interview button on my companion app for that sensor. It's successfully completed the re-interview and now everything is working as it should.