ARMY TM 9-4120-380-14
AIR FORCE TO 35E9-136-21
4.33 INDICATOR LIGHTS (DS 1-DS7). This task covers inspection, testing, removal and installation
Tool kit, service, refrigeration unit (Item 1, Appendix B)
Disconnect input power to the air conditioner before performing any internal
maintenance. Voltages used can KILL. Shutting the unit off at the control panel does not
disconnect unit power.
Disconnect air conditioner input power at source, and
a. Check that light lenses are not cracked or broken. Replace light if damaged (see fig. 4-24)
b Check that leads are properly connected (see fig. FO-2.) Repair all broken leads. If wiring harness is damaged,
a. Using multimeter, test each light assembly resistor for proper resistance. Resistance should measure 2850-3150
Replace lamp If resistor measurement is correct.
a. Tag and disconnect leads
b. Remove clip (2).
Remove indicator light (1) through front of panel.