When a judge is presented with a motion to recuse, or disqualify, accompanied by an affidavit, the judge shall temporarily cease to act upon the merits of the matter and shall immediately determine the timeliness of the motion and the legal sufficiency of the affidavit, and make a determination, assuming any of the facts alleged in the affidavit to be true, whether recusal would be warranted. If it is found that the motion is timely, the affidavit sufficient and that recusal would be authorized if some or all of the facts set forth in the affidavit are true, another judge shall be assigned to hear the motion to recuse. The allegations of the motion shall stand denied automatically. The trial judge shall not otherwise oppose the motion. In reviewing a motion to recuse, the judge shall be guided by Canon 3(E) of the Georgia Code of Judicial Conduct.