The High Humidity alert indicates that the humidity level inside your home is greater than 70%. Your air conditioner is not removing moisture from the air effectively and that can make your home feel warmer than it actually is.

The cause may be as simple as a door or window that has been left open. If possible, make sure no doors or windows are open.

If that is not the cause, check to make sure your Sensi thermostat is set to cooling mode using your app or thermostat: