A sweep-out facility is exactly the opposite of a sweep-in facility. If there is a deficit in the savings account, the deficit amount is transferred from the FD account to the savings or current account. You have to link your FD account to your savings account for availing this facility. You also have to set the minimum balance that they want to maintain in your savings account. Therefore, anytime there is a deficit, it will be restored automatically from the FD account to your savings account.