Troubleshooting (Electrical System) - Piper Dakota Maintenance Manual

CHART 3301. TROUBLESHOOTING (ELECTRICAL SYSTEM)
Trouble
All warning lights fail to
operate.
All warning lights fail to
extinguish after engine is
running.
OIL warning light fails to
operate.
OIL warning light fails to
extinguish.
VAC warning light fails to
operate.
PIPER AIRCRAFT
PA-28-181
MAINTENANCE MANUAL
Cause
ANNUNCIATOR PANEL
Blown fuse.
No current from bus.
Test switch grounded out.
Bulb burned out.
No current to sensor.
Sensor activates at a too low
setting.
Defective sensor.
Sensor activates at a too
high setting.
Sensor terminals bridged.
Defective sensor.
Bulb burned out.
No current to sensor.
Sensor activates at a too
low setting.
Defective sensor.
2C23
Remedy
Replace 5 amp fuse behind
instrument panel.
Check all wire segments,
connections, and recep-
tacle at left side of
annunciator panel.
Check terminals and replace
switch if necessary.
Replace.
Check all wire segments and
connections.
Replace.
Replace.
Replace.
Remove material between
terminals.
Replace.
Replace.
Check all wire segments and
connections.
Replace.
Replace.
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Page 33 - 02
Reissued: August 1, 1986