TM 55-1510-221-MTF
TROUBLESHOOTING GUIDE D - CAUTION
PANEL
CONDITION
PROBABLE CAUSE
D1. Annunciator light (annunciator panel) will not illuminate
when press-to-test button is pressed.
a.
Defective fault warning light
b.
Defective annunciator fault detection mod-
ule
c.
Defective wiring
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 annunciator press-to-test switch has no
effect on fault warning system operation.
a.
Defective switch
b.
Defective circuit breaker
c.
Defective wiring
D4. Dim control does not function properly.
a.
Defective rheostat switch
b.
Defective annunciator control module.
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