TM 9-2350-287-20-12-19. TROUBLESHOOTING CHART (continued).n.PERSONNEL HEATER (continued).(3) PERSONNEL HEATER CONTINUES RUNNINGWITH HEAT SELECTOR SWITCH TURNED OFF.All other electrical systems operate.Initial Setup:Tools/Test Equipment:Crew AFES system deactivated (para 21-3).Digital Multimeter(DMM) (Item 13, Appendix 1)Engine AFES system deactivated (para 21-2).General mechanic’s tool kit (Item 24,Engine AFES fire bottles removed (para 21-4).Appendix I)Equipment Conditions:MASTER switch set to OFF (refer to TM9-2350-287-10).WARNINGif heater is blowing hot air, do notdisconnect any electrical leads from theheater. An explosion may occur causinginjury or death.NOTEl Instead of using multi meterfor voltagecheck, STE/lCEtroubleshooting,INDIVIDUALBATTERY VOLTAGE TEST-TEST89 maybe performed.l Instead of using multi meterfor continuity check, STE/lCEtroubleshooting, TEST 91 maybe performed.l If heater continues to blow hot airafter HEAT SELECTOR switch isturned OFF and after cool downperiod has elapsed (one to twominutes) go to heater fuel pump anddisconnect harness 12351544.l When heater blows cool air, turnMASTER switch OFF (refer to TM 9-2350-287-10).Continued on next page2-248
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