TM 9--2350--292--20--10140 00--1PERSONNEL HEATER FAILS TO OPERATE PROPERLY.0140 00THIS WORK PACKAGE COVERS:Personnel Heater Fails To Operate ProperlyINITIAL SETUP:Tools and Special ToolsGeneral mechanic’s tool kit (item 1, WP 0717 00)Multimeter (item 84, WP 0717 00)Equipment ConditionsVehicle MASTER switch OFF (TM 9--2350--292--10)Batteries fully chargedPersonnel RequiredTwoDoes lamp light?Press heater indicator test lamp on heater controlbox.noyesnoyesABCONTINUED ON NEXT PAGE1. Disconnect harness 4W127 lead 400 fromheater control box.2. Place multimeter red lead in harness 4W127lead 400 and black lead to ground. Check forvoltage.Is 24 V dc present?WARNINGRemove rings, bracelets, wristwatches,and neck chains before working on anyvehicle. Jewelry can catch on equip-ment and cause injury, or may shortacross an electrical circuit and causesevere burns or electrical shock.Go to Step H.Go to Step F.noyesC1. Open left side air intake grilles above batterycompartment (TM 9--2350--292--10).2. Disconnect harness 3W218 lead 400 frombattery side of 30 amp circuit breaker.3. Place multimeter red lead in harness 3W218lead 400 circuit breaker connect socket andblack lead to ground. Check for voltage.Is 24 V dc present?Repair (WP 0290 00) or replaceharness (WP 0310 00) 3W218lead 400. Verify fault is corrected.
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