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Page Title:
TROUBLESHOOTING GUIDE D CAUTION PANEL |
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 TM 1-1510-223-MTF
C55.
Stall warning deice inoperative.
a.
STALL WARN circuit breaker tripped.
b.
STALL WARN circuit breaker defective.
c.
STALL WARN deice switch defective.
d.
Defective stall warning deice heating element.
C56.
Left or right fuel vent deice inoperative.
a.
FUEL VENT HEAT circuit breaker tripped.
b.
FUEL VENT HEAT circuit breaker defective.
c.
FUEL VENT deice switch defective.
d.
Defective fuel vent deice heating element.
TROUBLESHOOTING GUIDE D CAUTION PANEL
CONDITION
PROBABLE CAUSE
D1.
Place card light (annunciator panel) will not illuminate
when press-to-test button is pressed.
a.
Defective placard light.
b.
Defective lamps.
c.
Defective fault detection module.
D2.
MASTER WARNING or MASTER CAUTION annunciator
light will not illuminate for any red or yellow faults.
a. Defective fault warning light.
b.
Defective fault detection module.
c.
Defective annunciator control module.
D3.
Depressing the press-to-test switch has no effect on fault
warning system operation.
a. Defective switch.
b.
Defective circuit breaker.
c.
Defective wiring.
3-15
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