This article will walk you through removing a device from your Apple Home app.
Removing a device from your Apple Home app
Step 1: Open the Home app then tap and hold the tile of the device you wish to remove.
Step 2: Tap on the gear icon in the lower right corner to bring up the device settings.
Step 3: Scroll down and tap Remove Accessory.
Step 4: A confirmation pop-up will appear. Tap Remove to confirm.