Whenever a member of the Electoral Commission dies, resigns, is removed from office, or is absent from Sierra Leone, or is by reason of illness or any other cause unable to perform the functions of his office, the President may appoint a person who is qualified to be appointed Electoral Commissioner and any person so appointed shall, subject to the provisions of subsections (6) and (7), continue to perform those functions until his appointment is revoked by the President, or until the Electoral Commissioner is able to perform those functions, or until the appointment of a new Electoral Commissioner.