A factory or hard reset is a good idea if your ZAC36 is not responding to any type of command.

If excluding the device from your Z-Wave network did not help, then it's time to try a factory reset. A hard reset will erase all custom settings and recorded activity, returning the device to factory defaults.

Make sure the Z-Wave button is unlocked, then to reset the Titan Valve Actuator, press and hold the Z-Wave button until 10 beeps sound. Release the button, and immediately after, click the Z-Wave button 5 times. The LED indicator will flash yellow, then it will turn green for 2 seconds and will sound a long beep to confirm a successful reset.

Once the ZAC36's LED indicator confirms a successful reset, try including it to your Z-Wave hub again to see if that helped resolve any issues you were seeing. 

Let us know if you have any questions or need help troubleshooting the device further. We'll be happy to help!