5. MANIFOLD HEAT LIGHT (1) DOES NOT LIGHT.
Remove LH panel assembly. Turn lens cap (2) counterclockwise and
remove clear lens (3), lens cap (2), and legend plate (4). Pull out indicator
light (5) through rear of LH control panel (6). Check lamp (7) to see if
burned out by installing in a known operational indicator receptacle.
a. Replace lamp (TM 9-4910-387-24P) if required.
b. If the above procedure does not correct fault, notify next
higher level of maintenance.