Piper Navajo Chieftain PA-31-350 Service Manual page 551

NAVAJO CHIEFTAIN SERVICE MANUAL
TABLE IX-IV. TROUBLESHOOTING CHART (FUEL SYSTEM) (cont)
Trouble
Cause
Remedy
FUEL WARNING SYSTEM
Fuel flow warning
light fails to
illuminate.
Bulb(s) burned out.
No power from bus.
Replace.
Check and reset the
gear, oil temperature,
and fuel quantity in-
dicator circuit breaker.
Trace through system for
an open circuit or faulty
component.
Fuel flow sensor
probe malfunction.
Gated delay relay
malfunction.
Check free movement of
probe tip; replace if
defective.
Replace relay after the
cause for the white wire
to ground has been iso-
lated and corrected.
Fuel flow warning
light fails to ex-
tinguish.
Low fuel level in
fuel cell.
Fuel flow sensor
probe malfunction.
Fill.
Check free movement of
probe tip; replace if
defective.
I
Ground in circuit.
Pressure switch
malfunction.
Trace through system for
ground.
Replace.
Reissued: 9/23/80
FUEL SYSTEM
2L16