WHILE INSPECTING THE ELEVATOR, EE TESTED THE EMERGENCY STOP, AND IT FUNCTIONED PROPERLY. WHEN CONTROLS WERE PLACED IN THE NORMAL OPERATION POSITION TO RESUME OPERATION, THE ELEVATOR WOULD NOT MOVE. A CONTACTOR WAS FOUND TO BE MECHANICALLY STUCK IN AND WOULD NOT ALLOW THE ELEVATOR TO MOVE. THE CONTACTOR WAS REPAIRED AND THE ELEVAT0R PLACED BACK INTO SERVICE AT 2:25 PM.