TM
5-5420-226-20-1
DETAILED
TROUBLESHOOTING
PROCEDURE
Symptom-73
SUPPORT
SYSTEM
- PERSONNEL
HEATER
T
~
NOTE
Step
%
3
seems
to be a repeat
of
Steps
1
and
@
, however,
it is
necessary
to satisfy
the 3 possible
conditions.
1. Both HI and LO do not work.
2. Only HI or only LO works.
3. Both HI and LO work.
(Continued)
Check if personnel
heater
blower motor is working
in
both HI and LO switch
positions.
Second
Technician
(Operators
Station)
l
Listen for sound of personnel
heater blower motor
when
HI/LO
switch
is set ON-HI.
l
Set PERSONNEL
HEATER
HI/LO
switch
ON-LO.
l
Listen
for sound
of personnel
heater
blower
motor.
Can personnel
heater
blower
motor be heard in both
ON-HI and ON-LO
switch
positions?
See
Symptom
74:
PERSONNEL
HEATER
Hi/LO
SWITCH
WILL
NOT
CONTROL
CONTROL
HEATER
(BLOWER
RUNS
IN ONE OR BOTH
ON-HI,
ON-LO
SWITCH
POSITIONS).
TA107375
4-686