Piper Arrow IV Turbo Maintenance Manual page 196

CHART 2403. TROUBLESHOOTING (ANNUNCIATOR PANEL)
Trouble
All warning lights fail to
operate.
All the warning lights fail to
extinguish after engine is
running.
OIL warning light fails to
operate.
OIL warning light fails to
extinguish.
OVERBOOST warning
fails to operate.
OVERBOOST warning
fails to extinguish.
PIPER AIRCRAFT
PA-28RT-201 / 201T
MAINTENANCE MANUAL
Cause
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.
Circuit in manifold pres-
sure gauge defective.
Press to test switch shorted
to ground.
Circuit in manifold pres-
sure gauge defective.
1I4
Remedy
Replace the 5 amp fuse be-
hind instrument panel.
Check all wire segments,
connections, and the re-
ceptacle at the left side of
the 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.
Replace gauge.
Replace switch.
Replace gauge.
24-02-00
Page 24-09
December 1, 1978