How to reset HomeKit (Home app) on MacOS
This is a question with an answer, I just wanted to document this to perhaps help someone else in future.
My Home app on macOS Monterey was borked. I could see all my devices, but not all my Rooms and other settings - everything was in "Default Room". You may have different issues.
Here's how I reset HomeKit on MacOS (only), and it worked fine for me.
- Go into System Preferences -> Apple ID -> iCloud, and then uncheck "Home".
- Go into the Library folder within your user folder (~/Library) and delete the entire "HomeKit" folder there.
- Restart the entire machine.
- Open the Home app, just to ensure there are no settings. Quit Home.
- Go into System Preferences again and turn on Home again.
- Wait a minute or two and everything should be synced up again!
You're welcome!
Mac mini, macOS 10.12