TM 9-2320-361-10 2-51. OPERATION OF CARGO BODY ARCTIC KIT (Contd) NOTE RUN-OFF-START switch is spring-loaded and will return to OFF position from START position if not held down. If red indicator light does not illuminate within two minutes, turn RUN-OFF-START switch to OFF position. Wait three minutes before trying to start heater again. If red indicator light does not illuminate after two attempts, notify your supervisor. (7) Turn RUN-OFF-START switch (7) on control box to START position. Hold in that position until red indicator light (6) illuminates. NOTE If RUN-OFF-START switch is turned to RUN position before red indicator light illuminates, heater will not operate. (8) As soon as red indicator light (6) illuminates, turn RUN-OFF-START switch (7) to RUN position, with no hesitation at OFF position. 2-207