# Z wave clash perhaps?

**URL:** <https://community.homey.app/t/z-wave-clash-perhaps/36781>\
**Category:** Questions & Help\
**Created:** [October 31, 2020, 12:51pm UTC](https://community.homey.app/t/z-wave-clash-perhaps/36781 "2020-10-31T12:51:57Z")\
**Posts on this page:** 2\
**Page:** 1

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**Author:** ![Julian\_Driver](https://sea1.discourse-cdn.com/flex025/user_avatar/community.homey.app/julian_driver/32/12699_2.png) [@Julian\_Driver](https://community.homey.app/u/Julian_Driver)\
**Post date:** [October 31, 2020, 12:51pm UTC](https://community.homey.app/t/z-wave-clash-perhaps/36781/1 "2020-10-31T12:51:57Z")

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I have run a Heat Genius system ([https://www.geniushub.co.uk/](https://www.geniushub.co.uk/)) for 4 years with no errors that I can remember. It communicates with its sensors and the like by Z-wave. Rock solid is the way I would describe it. It handles 8 zones via dual channel receivers, with each zone running at least one Room Sensor.

I recently started running my Homey to get it ready to move to install elsewhere. Since I turned it on I have had instances of Heat Genius loosing Room Sensors. By that I mean that a warning comes up saying either ‘the room sensor X cannot be found’ or ‘no temperature is available for zone X’ or sometimes both. This has never happened before. I find that if I turn off the Homey system the problem seems to goes away and the missing sensor is connected again. I have made no attempt to get the two devices to communicate with each other, and the Homey is not running any other devices.

My question therefor is can Z-wave devices interfere with each other, how do I formally test for that and has anybody else seen this effect when using two unconnected Z-wave devices?

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**Author:** ![JPe4619](https://sea1.discourse-cdn.com/flex025/user_avatar/community.homey.app/jpe4619/32/9017_2.png) [@JPe4619](https://community.homey.app/u/JPe4619)\
**Post date:** [October 31, 2020, 4:28pm UTC](https://community.homey.app/t/z-wave-clash-perhaps/36781/2 "2020-10-31T16:28:11Z")

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In a Z-Wave network, only one Master device is allowed, disabling Z-Wave on your Homey should solve the problem.