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TM 9-2320-364-20-3
2-2928
6. FAN SPEED DOES NOT LOWER FROM HIGH SPEED TO LOW SPEED (CONT).
Heater blower motor operates,
indicating CB15 OK.
Fan speed does not lower when
hydraulic selector switch is in
the AUTO or CRANE/SRW
position.
Rectifier OK.
Wire 1733 OK.
Wire 1435 faulty.
KNOWN INFO
POSSIBLE PROBLEMS
TEST OPTIONS
REASON FOR QUESTION
Continuity test.
STE/ICE-R #91.
If wire 1435 is loose or faulty,
high speed fan solenoid valve
will not be grounded.
YES
NO
Repair wire 1435 (see
schematic Fig 2-67)
or notify DS
Maintenance.
Verify repair, go to
Step 19 of this Fault.
13.
Is there continuity on wire
1435 between harness
connector, terminal 1 and a
known good ground?
Fault not corrected.
Notify DS
Maintenance.
WARNING
Read WARNING
on Page 2-2929
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