TM 9-2320-386-10 2-96 2-43. OPERATION OF ARCTIC WINTERIZATION KIT (Contd) (3) Turn accessory power switch (1) to ON position. NOTE HI-LO and RUN-OFF-START switches and red indicator light for fuel burning personnel heater and power plant heater are the same. (4) Depress red indicator light (2) to check operation of circuit. If red indicator light (2) does not illuminate, contact your supervisor. 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 for fuel burning personnel heater or power plant heater does not illuminate with 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 illumi- nate after two attempts, notify your supervisor. • If RUN-OFF-START switch is turned to RUN position before red indicator light illuminates, heater will not operate. • For power plant heater operation, perform steps 5 through 8. For fuel burning personnel heater operation, perform steps 9 through 13. (5) Set HI-LO switch (4) on power plant heater control to HI or LO, as neces- sary, and turn RUN-OFF-START switch (3) to START position until red indicator light (2) illuminates. CAUTION Do not operate power plant heater with engine running, or engine may overheat. (6) As soon as red indicator light (2) illuminates, turn RUN-OFF-START switch (3) to RUN position, and run power plant heater as necessary. (7) Start engine (para. 2-12 or 2-13), if required. NOTE • Red indicator light will remain on until fuel in heater burns away and heater cools. • Do not turn accessory switch to OFF while engine is running.