PIPER AIRCRAFT, INC.
PA-28-161, WARRIOR III
MAINTENANCE MANUAL
PAGE 4
Nov 30/06
3D4
31-50-00
CHART 2 (Sheet 2 of 3)
TROUBLESHOOTING ANNUNCIATOR
Trouble Cause Remedy
STARTER ENGAGE fails Blown bulb(s). Replace bulb(s).
to illuminate.
Blown 5 amp in line fuse Replace fuse.
between starter contactor and
annunciator panel.
STARTER ENGAGE fails to Open R-8 resistor in Replace resistor.
dim with switch in NIGHT position. annunciator box assembly.
Defective K-4 relay in Replace relay.
annunciator box assembly.
VACUUM INOP fails to Blown bulb(s). Replace bulb(s).
illuminate.
No voltage to sensor. Check all wire segments
and connections.
Sensor activates at a too Replace. See Chapter 37.
low of a setting.
Defective sensor. Replace. See Chapter 37.
VACUUM INOP light does Sensor activates at a too Replace. See Chapter 37.
not extinguish. high of a setting.
Sensor terminals bridged. Remove material between
terminals.
Defective sensor. Replace. See Chapter 37.
VACUUM INOP fails to dim Open R-6 resistor in annunciator Replace resistor.
with switch in NIGHT position. box assembly.
Defective K-3 relay in Replace relay.
annunciator box assembly.
ALTERNATOR INOP fails to Blown bulb(s). Replace bulb(s).
illuminate.
ALTERNATOR INOP fails to Blown 1/4 amp fuse between Replace fuse.
extinguish. alternator and alternator out switch.
Defective alternator out Replace switch.
switch.
Open wiring or connector between Check wires W2A and
alternator out switch and W2B, and connectors R2-6
annunciator panel. and P2-6 for open or bad
connection. Repair as
necessary.
ALTERNATOR INOP fails to Open R-10 resistor in annunciator Replace resistor.
dim with switch in NIGHT position. box assembly.
Defective K-5 relay in Replace relay.
annunciator box assembly.
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