Every Smart Vent has to communicate with a Gateway Puck. If your Smart Vent isn't opening or closing, it may not have a good signal to a Gateway Puck. Check the Vent's signal strength. If the RSSI value is below -75dB, try moving a Gateway Puck closer to the Vent - or converting a nearby Sensor Puck to a Gateway Puck to boost the RF signal to the Vent.
If the RSSI value is -75dB or above, try the suggestions below.
If the Vent is not opening or closing, try replacing the batteries with fresh, new batteries. You can also try tightening the battery holders.
Note: wait 30 seconds before replacing the batteries to allow the capacitors to drain and the Smart Vent to reset.
Test in Manual Mode
Test the Smart Vent in Manual Mode.
If the Vent does not open and close, try physically opening or closing the Vent louvers (depending on the current state). Then test in Manual Mode again.
Contact the support team with the results - we may be able to make a remote speed adjustment on the Vent.