The test button is used to check the operation of the lights when the engine is running. The lights will work
when the engine is not running with the master switch turned on.
—NOTE—
Oil pressure sensor and vacuum sensor switches are similar in
looks and size. Insure correct unit is to be installed per Parts
Catalog part number and description.
TROUBLESHOOTING.
CHART 3301. TROUBLESHOOTING (ELECTRICAL SYSTEM)
Trouble Cause Remedy
All the warning lights fail to Blown fuse. Replace the 5 amp fuse be-
operate. hind instrument panel.
No current from bus. Check all wire segments,
connections, and the re-
ceptacle at the left side of
the annunciator panel.
All the warning lights fail to Test switch grounded out. Check terminals and replace
extinguish after engine is switch if necessary.
running.
OIL warning light fails to Bulb burned out. Replace.
operate.
No current to sensor. Check all wire segments and
connections.
Sensor activates at a too low Replace.
setting.
Defective sensor. Replace.
OIL warning light fails to Sensor activates at a too Replace.
extinguish. high setting.
Sensor terminals bridged. Remove material between
terminals.
Defective sensor. Replace.
ANNUNCIATOR PANEL
33-10-06
Page 33-03
Added: July 24, 1981
2F23
PIPER AIRCRAFT
PA-28RT-201 / 201T
MAINTENANCE MANUAL
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