TM 9-2350-287-10TROUBLESHOOTING (Bilge Pump) (continued)MALFUNCTIONTEST OR INSPECTIONCORRECTIVE ACTION16. HEAT OUTPUT IS TOO LOWCheck to see if heater switch is set at HI.If not, place switch at HI.If condition persists, notify Unit maintenance.17. HEAT EXCHANGER LOADS UP WITH SOOT AND/OR CARBONCheck to see if exhaust outlet is restricted.If restricted, clean exhaust outlet.If condition persists, notify Unit maintenance.BILGE PUMP18. BILGE PUMP DOES NOT OPERATEStep 1. Check to see if MASTER switch is set to ON.If not, turn MASTER switch to ON.Step 2. Check to see if outlet is restricted.If outlet is restricted, clean outlet.If condition persists, notify Unit maintenance.AUXILIARY POWER UNIT (APU) ENGINE19. APU ENGINE DOES NOT STARTStep 1. Check to see if MASTER switch is set to ON.If not, turn MASTER switch to ON.Step 2. Check for low battery charge indicated on BATTERY-GENERATOR indicatorgage (indicator gage should read at least in low yellow range).If indicator gage reads below low yellow range, notify Unit maintenance.Step 3. Check to see if APU GENerator switch on AUXILIARY POWER UNITCONTROL BOX is set to OFF.If not, turn APU GENerator switch to OFF.3-10
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