TM 5-3805-261-20BODY, CHASSIS AND HULL ACCESSORY ITEMS TROUBLESHOOTING AND MAINTENANCE PROCEDURES.(cont)MALFUNCTIONTEST OR INSPECTIONCORRECTIVE ACTIONd.FRONT OR REAR WINDOW DEFROSTER DOES NOT OPERATE. (cont)Step 2.Check fuse number 10A.If fuse is blown--replace. Refer to paragraph 7-63.Step 3.Check the defroster motor.If the defroster motor is damaged or defective--replace. Refer to paragraph 14-8.Step 4.Test the continuity of the defroster switch. Refer to Wiring Harness Troubleshooting, paragraphs 7-114 and 7-115 for continuity test procedure.Step 5.Test the continuity of the harness between the defroster motor and defroster switch. Refer toWiring Harness Troubleshooting, paragraphs 7-114 and 7-115 for continuity test procedure.e.HEATER FANS AND CONTROLS OPERATE, BUT NO HEAT.Step 1.Check hoses and connections to heater coil.If hose clamps are loose--tighten. If hose is damaged or defective-- replace. Refer to paragraph 14-9.Step 2.Check control valve assembly.If the control valve assembly is damaged or defective--replace. Refer to paragraph 14-9.Step 3.Check heater coil.If the coil is blocked, damaged or defective--replace. Refer to paragraph 14-9.f.BOTH HEATER FANS FAIL TO OPERATE.Step 1.Check circuit breaker number 60A.14-4
Integrated Publishing, Inc. - A (SDVOSB) Service Disabled Veteran Owned Small Business
