S.C. Code Ann. § 40-23-35
The Governor may remove any member of the board who has been found guilty of continued neglect of his duties or who is found to be incompetent, unprofessional, or dishonorable. No member may be removed without first giving him an opportunity to refute the charges filed against him. He must be given a copy of the charges at the time they are filed.
If a board member is disqualified and his absence results in the lack of a quorum or an adequate number of members to perform official functions, the Governor may deputize an individual to replace him during the period of disqualification. The deputized individual shall meet the same qualifications as the member he is replacing and shall take the same oath as required of other members of the board.