| Tweet |
Custom Search
|
|
|
||
 TM 55-1905-242-14
0050 00
MALFUNCTION
TEST OR INSPECTION
CORRECTIVE ACTION
HEATING, VENTILATION, AND
AIR CONDITIONING SYSTEMS
1. Accommodation module
Use multimeter to check for 24 Vdc at the fan.
1.
If 24 Vdc is present, replace
ventilation fans do not
the fan (WP 0139 00).
run.
2.
If 24 Vdc is not present, use
the wiring diagram in FO-2
to locate the OPEN circuit.
Repair the OPEN circuit.
2. Battery compartment
Use multimeter to check for 24 Vdc at the fan.
1.
If 24 Vdc is present, replace
ventilation fan does not
the fan (WP 0139 00).
run.
2.
If 24 Vdc is not present, use
the wiring diagram in FO-2
to locate the OPEN circuit.
Repair the OPEN circuit.
3. Engine room ventilation
Use multimeter to check for 24 Vdc at the fan.
1.
If 24 Vdc is present, replace
fan does not run.
the fan (WP 0139 00).
2.
If 24 Vdc is not present, use
the wiring diagram in FO-2
to locate the OPEN circuit.
Repair the OPEN circuit.
4. Water closet ventilation
1.
Use multimeter to check for 24 Vdc at the fan.
1.
If 24 Vdc is present, replace
fan does not run.
the fan.
2.
If 24 Vdc is not present,
proceed to test 2.
2.
Use multimeter to check for 24 Vdc on both
1.
If 24 Vdc is present on the
sides of the door switch with the door
line side of the door switch,
CLOSED. (The door must be CLOSED less
but not on the load side,
than 5 minutes to prevent the timer from
replace the switch.
OPENING the circuit)
2.
If 24 Vdc is present on both
sides of the switch, proceed
to test 3.
3.
If 24 Vdc is not present on
either side of the switch, use
the wiring diagram in FO-2
to locate the OPEN circuit
between the door switch
and the timer. Repair the
OPEN circuit.
3.
Use multimeter to check for 24 Vdc on both
1.
If 24 Vdc is not available on
sides of the timer. (The door must be CLOSED
both sides of the timer,
for less than 5 minutes to prevent the timer
replace the timer.
from OPENING the circuit).
0050 00-3
|
||
|
||
