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Page Title:
PERSONNEL HEATER FAN DOES NOT OPERATE (CONT) |
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 TM 9-2320-366-20-1
TM
e76. PERSONNEL HEATER FAN DOES NOT OPERATE (CONT)
KNOWN INFO
TEST OPTIONS
4.
Circuit breaker OK.
Continuity Test or
Main instrument panel
STE/ICE-R#91
Is continuity present
controls and indicators OK.
REASON FOR QUESTION
between connector PX25-4
Heater fan control
If continuity is not present,
and a known good ground?
switch OK.
wire 3003 is faulty. If
continuity is present,
POSSIBLE PROBLEMS
personnel heater is faulty.
Faulty dashboard cable
assembly.
Faulty personnel heater.
NO
Repair wire 3003 (para 2-45)
or replace WTEC II dashboard cable
YES
assembly (para 7-10) or WTEC III
dashboard cable assembly (para 7-11).
Replace or repair personnel
heater (para 18-9).
WARNING
Read WARNING
KNOWN INFO
TEST OPTIONS
5.
on following page.
Circuit breaker OK.
Voltage Test or
Main instrument panel
STE/ICE-R #89
Is 24 vdc present at
controls and indicators OK.
REASON FOR QUESTION
connector PX25-1?
Heater fan control
If 24 vdc is not present,
switch OK.
wire 1601 is faulty. If
24 vdc is present,
POSSIBLE PROBLEMS
personnel heater is faulty.
Faulty dashboard cable
assembly.
NO
Faulty personnel heater.
Repair wire 1601 (para 2-45)
or replace WTEC II dashboard cable
YES
assembly (para 7-10) or WTEC III
dashboard cable assembly (para 7-11).
Replace or repair personnel
heater (para 18-9).
2-872
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