Attempting to re-pair a Blossom Controller that is already paired will result in a "Reconnect Error" message in the Blossom app. If the Blossom Controller Status Light is solid blue or pulsating blue, the Controller is paired, and there is no need to re-pair. If the light is not blue but the device was previously paired, you may have a network communications problem. Please see the help articles for the Indicator color you are seeing.