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CHAPTER  2 DIRECT SUPPORT MAINTENANCE INSTRUCTIONS
Table  2-1.  Direct  Support  Troubleshooting

TM-3-4230-218-30P Decontaminating Apparatus: Power-Driven Portable Type A/E32U-8 NSN: 4230-01-153-8660 Manual
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TM 3-4230-218-30&P 2-2. SYMPTOM INDEX. Malfunction No. 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 Malfunction Page Burner lights and extinguishes when the START BURNER switch is released . . . . . . . . . . . .2-2 Burner will not extinguish when THERMOSTAT SELECTOR switch is set to OFF (OPEN MAG VALVE light is off). . . . . . . . . . . . . . . . . . . . .2-4 Burner will not extinguish when THERMOSTAT SELECTOR switch  is set to OFF (OPEN MAG valve light is on) . . . . . . . . . . . . . . . . . . . .2-4 Burner will not liqht. . . . . . . . . . . . . . . . . .2-4 Engine   knocks or backfires . . . . . . . . . . . . . . . 2-5 Engine overheats . . . . . . . . . . . . . . . . . . . . .2-6 Engine runs, burner will not light . . . . . . . . . . .2-6 Engine runs roughly or stops . . . . . . . . . . . . . . .2-7 Engine will not start . . . . . . . . . . . . . . . . . .2-7 Low engine power or speed. . . . . . . . . . . . . . .2-7 Low water pressure. . . . . . . . . . . . . . . . . . .2-7 No heater fuel pressure . . . . . . . . . . . . . . . . .2-9 No water pressure . . . . . . . . . . . . . . . . . . . .2-10 No water temperature indication . . . . . . . . . . . .2-10 OPEN MAG VALVE indicator fluctuates . . . . . . .2-11 2-3. TROUBLESHOOTING TABLE. Table  2-1.  Direct  Support  Troubleshooting MALFUNCTION TEST OR INSPECTION CORRECTIVE ACTION 1. BURNER LIGHTS AND EXTINGUISHES WHENSTART BURNER SWITCH IS RELEASED. Step Step Step 1 . Check for defective THERMOSTAT SELECTOR switch or thermo- stats. Test  switch  and  thermostats  (refer  to  page  2-62). If  switch  is  not  defective,  proceed  to  step  2. 2. Check   for   loose   or   broken   switch   or   thermostat   wiring. Repair  or  replace  wiring  (refer  to  page  2-61) 3.   If   thermostats,   swiches   and   wiring   are   not   defective,   control module  must  be  replaced. Replace  control  module  (refer  to  page  2-74). 2-2







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