TABLE XI-VI. TROUBLESHOOTING CHART (ELECTRICAL SYSTEM) (cont.)
Trouble
Cause
Remedy
ANNUNCIATOR PANEL (cont.)
VAC waning light
Bulb burned out.
Replace.
fails to operate.
No current to sensor.
Check all wire segments
and connections.
Sensor activates at a
Replace.
too low setting.
Defective sensor.
Replace.
VAC warning light
Sensor activates at a
Replace.
fails to extinguish.
too high setting.
Sensor terminals
Remove material
bridged.
between terminals.
Defective sensor.
Replace.
ALT warning light
Bulb burned out.
Replace.
fails to operate.
No current from bus
Check all wire segments
to resistor.
and connections.
ALT warning light
Blown fuse.
Replace 5 amp fuse
fails to extinguish.
aft of the diode heat
sink.
No current from the
Check all wire segments
fuse to the resistor.
and connections.
Test switch fails to
Bad switch or
Check wires and re-
activate warning lights.
connections.
place switch if
necessary.
PIPER AIRCRAFT
PA-28-161 CADET
AIRPLANE MAINTENANCE MANUAL
Issued: FEBRUARY. 28, 1989
ELECTRICAL SYSTEM
2E14