If you are getting a "failed to add" error in the TaHoma Pro app, follow these steps:
Step 1. Press and Hold Program button on back of Ysia Remote for 15 seconds.
Step 2: Remove batteries from back of remote for 1 full minute How do I replace batteries in my remote? : Support Center
Step 3: Reinsert batteries into remote.
Step 4: Add Ysia remote using TaHoma Pro app. Zigbee: TaHoma Pro How To for Dealers : Support Center
For additional support:
Customer Service
1-800-221-6352