TM 1-1510-224-MTF
C45.
FIRE DETR circuit breaker trips.
Short circuit in wiring or components.
C46.
Left FIRE PULL warning light illuminates in test position but
right FIRE PULL warning light does not.
a.
Defective right fire detector.
b.
Defective wiring between fire warning power circuit breaker and
right fire detector.
C47.
Right FIRE PULL warning light illuminates in test position but
left FIRE PULL warning light does not.
a.
Defective left fire detector.
b.
Defective wiring between fire warning power circuit breaker and
left fire detector.
C48.
Ventilation blower will not run.
a.
Tripped vent blower circuit breaker.
b.
Defective motor brushes.
c.
Defective wiring.
d.
Defective motor.
e.
Defective switch.
C49.
Ventilation blower draws excessive current.
a.
Misaligned or preloaded bearings.
b.
Defective bearings.
C50.
Ventilation blower runs at reduced speed.
Brushes not seated properly.
C51.
Ventilation blower draws excessive current and runs at high
speed.
Shorted turns in field windings.
C52.
Ventilation blower draws excessive current and speed surges.
Shorted turns in armature.
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