Item changes unexpectedly

Setup, Configuration and Use Items & Sitemaps
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1

Hi everyone.

I have some fibaro leak sensors that I use to turn off the water if a leak is detected. For some days now I have had problems with one sensor triggering even without a leak. So yesterday I removed the battery from the device to keep my wife happy. But this morning it happened again with the same sensor:
2017-08-10 07:00:55.822 [ItemStateChangedEvent ] - E1_Teknisk_Deteksjon_Lekkasjesensor_BinarySensor changed from OFF to ON
2017-08-10 07:00:55.822 [GroupItemStateChangedEvent] - dgLekkasje changed from OFF to ON through E1_Teknisk_Deteksjon_Lekkasjesensor_BinarySensor

The sensor is “E1_Teknisk_Deteksjon_Lekkasjesensor_BinarySensor”.

Here is the configuration of the item:

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Anyone got any good ideas as to what is happening here? Why do I get false triggers of the sensor?
Here is a list of all triggers for the last 30 days:

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“Lekkasje Gruppe” is the group dgLekkasje from the log and “Sensor Teknisk” is the sensor in speak.
I run version 2.1.0 - stable.

//Morten

2

I don’t think that this is related to your OH2 configs… One possibility is that the FGFS101 is simply reporting false positives.
check: Link

You can enable debug on the Z-Wave binding to see if the node is sending these false positive reports (or there is another source that triggers the ItemStateChangedEvent)

3

How can it report false positives when it is without battery in it?
I’ll turn on debug for binding to see if there is something else that triggers it :slight_smile:

4

oops. i assumed that you re-inserted the battery :slight_smile:
If it is offline, then the trigger isn’t coming from the Z-Wave binding (most likely)…
Do you have any kind of rule that updates the state of this item?
Is this item linked to any other binding (other than Z-Wave)

5

I still see some strange things here I really do not understand. The battery is still removed from the sensor but today it triggered again.

From the log:
2017-08-15 06:34:19.504 [DEBUG] [ssage.ApplicationCommandMessageClass] - NODE 39: Application Command Request (ALIVE:DETAILS)
2017-08-15 06:34:19.504 [DEBUG] [ssage.ApplicationCommandMessageClass] - NODE 39: Incoming command class SENSOR_BINARY
2017-08-15 06:34:19.504 [DEBUG] [dclass.ZWaveBinarySensorCommandClass] - NODE 39: Received SENSOR_BINARY command V1
2017-08-15 06:34:19.504 [DEBUG] [dclass.ZWaveBinarySensorCommandClass] - NODE 39: Sensor Binary report, type=Unknown, value=238
2017-08-15 06:34:19.504 [DEBUG] [ve.internal.protocol.ZWaveController] - Notifying event listeners: ZWaveBinarySensorValueEvent
2017-08-15 06:34:19.504 [DEBUG] [ding.zwave.handler.ZWaveThingHandler] - NODE 39: Got an event from Z-Wave network: ZWaveBinarySensorValueEvent
2017-08-15 06:34:19.504 [DEBUG] [ding.zwave.handler.ZWaveThingHandler] - NODE 39: Got a value event from Z-Wave network, endpoint = 0, command class = SENSOR_BINARY, value = 238
2017-08-15 06:34:19.504 [DEBUG] [ding.zwave.handler.ZWaveThingHandler] - NODE 39: Updating channel state zwave:device:92d9f4ac:node39:sensor_binary to ON [OnOffType]

In GUI for OH I have looked at it in both Habmin and Paper UI.

Habmin:

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Note last wake-up time. 7 days ago.

Paper UI:

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It say it is online… Node is Node39.
I have tried searching to see if there is other nodes with the same node number but that shouldn’t be possible.

I cannot understand what is going on here.

//Morten