TM 11-5895-463-15
Probable trouble
Corrective measure
POWER INDICATOR NEON
a. Replace lam P.
1
a. Defective lamp.
LAMP fails to glow when
b. Check and repair or replace as
b. Defective power cable.
power is applied to AN/
requ i red.
c. Check and replace or repair re-
MSC-31A.
c. Defective IN POWER 115V AC
ceptacle as required.
receptacle.
Note. If immediate operation is required,
and POWER 115V OUT receptacle is not
used to wwer another assmeblage, use
POWER 115V AC OUT receptacle for in-
put power.
2
a. Defective MAIN circuit breaker
a. Replace circuit breaker.
VOLTS AC meter indicates 0
b. Replace meter,
b. Defective VOLTS AC meter.
volt when power is applied
c. Repair or replace cable.
and MAIN circuit breaker
c. Defective power cable.
is operated to ON
3
a. Replace neon lamp.
Neon lamp fails to glow when
a. Defective neon lamp.
b. Replace circuit breaker.
b. Defective circuit breaker on
associated circuit, breaker is
operated to ON.
power distribution panel.
a. Replace switch.
BY-
Fluorescent celling lights do
a. Defective BLACKOUT
4
not operate when fluorescent
PASS switch.
b. Replace circuit breaker.
light switch is operated to
b. Defective LIGHTS circuit break-
ON.
ers on power distribution panel.
c. Replace light..
c. Defective light.
5
a. Replace defective light switch.
Incandescent ceiling lamp does
a. Defective incandescent cold light
switch.
not light when incandescent
b. Defective fixture or wiring.
b. Check and repair or replace as
COLD START light switch
is operated to ON.
required.
c. Replace lamp.
c. Defective lamp.
a Replace switch.
6
Ceiling lights are not extin-
a. Defective door microswitch.
b. Replace switch,
BY-
guished when door is opened
b. Defective
BLACKOUT
B L A K O U T BY-PASS
PASS switch.
switch is at OFF.
7
Exhaust blower fails to oper-
a. Check and repair or replace as
required.
ate when BL0WER switch
b. Defective BLOWER switch or
is operated to ON.
b. Check and replace as required.
receptacle.
8
Heater fails to operate prop-
a. Check and replace as required.
a. Defective heater receptacle.
erly.
b. Check and replace as required.
b. Defective heater.
c. Check and replace as required.
c. Defective heater circuit breaker
on power distribution panel.
d. Check and repair as required.
d. Defective ac wiring,
9
Replace circuit breaker.
No ac power available from
Defective CONV circuit breaker
on POWER DISTRIBUTION
any CONVENIENCE re-
ceptacle.
PANEL,
a. Defective air conditioner power
a. Check and replace as required.
10
No ac power to air condi-
tioner.
receptacle.
b. Check and replace as required.
b. Defective AIR COND. circuit
breaker on power distribution
c. Check and repair as required.
panel.
c. Defective ac wiring.
a. Check and replace as required.
a. Defective equipment receptacle.
11
No ac power to equipment.
b. Check and replace as required
b. Defective EQUIP. circuit break-
er on power distribution panel.
c. Check and repair as require
c. Defective ac wiring.
a. Check and repair or replace as
a. Defective LS-147C/F1.
not
12
Local
required.
available with LS-147C/F1.
