TM 9-2320-365-20-1
2-836
e73. PERSONNEL HEATER FAN DOES NOT OPERATE (CONT)
NO
YES
4.
Is continuity present
between connector PX25-4
and a known good ground?
KNOWN INFO
Circuit breaker OK.
Main instrument panel
controls and indicators OK.
Heater fan control
switch OK.
POSSIBLE PROBLEMS
Faulty dashboard cable
assembly.
Faulty personnel heater.
TEST OPTIONS
Continuity Test or
STE/ICE-R#91
REASON FOR QUESTION
If continuity is not present,
wire 3003 is faulty. If
continuity is present,
personnel heater is faulty.
NO
YES
5.
Is 24 vdc present at
connector PX25-1?
KNOWN INFO
Circuit breaker OK.
Main instrument panel
controls and indicators OK.
Heater fan control
switch OK.
POSSIBLE PROBLEMS
Faulty dashboard cable
assembly.
Faulty personnel heater.
WARNING
Read WARNING
on following page.
TEST OPTIONS
Voltage Test or
STE/ICE-R #89
REASON FOR QUESTION
If 24 vdc is not present,
wire 1601 is faulty. If
24 vdc is present,
personnel heater is faulty.
Repair wire 3003 (para 2-40)
or replace WTEC II dashboard cable
assembly (para 7-10) or WTEC III
dashboard cable assembly (para 7-11).
Replace or repair
personnel heater
(para 18-9).
Repair wire 1601 (para 2-40)
or replace WTEC II dashboard cable
assembly (para 7-10) or WTEC III
dashboard cable assembly (para 7-11).
Replace or repair
personnel heater
(para 18-9).
