Here is a list of resources to help you troubleshoot your Zooz ZEN15 Power Switch and navigate the documentation that’s already out there 
We try our best to keep the Zooz Support Portal updated and continue adding helpful articles every day so take a look at the most popular docs first, there’s a good chance your question has already been answered! 
ZEN15 FAQ: the best place to start 
Which Appliances Should I Avoid Using with My ZEN15 Power Switch?
OTA Firmware Update Files: read all of the disclaimers carefully before applying an update to your device to avoid accidental bricking 
ZEN15 Change Log: where we keep track of all the updates made to the hardware and software of the device.
ZEN15 Specs: make sure you’re using your device with an approved load.
ZEN15 Advanced Settings: learn how to customize your device.
Detailed Support for ZEN15 Power Switch & Your Hub: