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Page Title:
CAB BLOWER DOES NOT OPERATE - continued |
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 TM 10-3930-673-20-1
31. CAB BLOWER DOES NOT OPERATE (CONT).
KNOWN INFO
TEST OPTIONS
2
WARNING
Read WARNING on
Heater/air conditioner switch OK.
Voltage test.
following page.
Defrost fans OK.
STE/ICE-R #89.
POSSIBLE PROBLEMS
REASON FOR QUESTION
Is voltage present at cab
Jumper wires faulty.
If voltage is not present, jumper
blower switch where jumper
Cab blower switch faulty.
wire is faulty.
wire (pink wire) connects
Fan speed wires faulty.
heater/air conditioner switch
Fan resistor pack faulty.
and cab blower switch?
Fan motor faulty.
Repair jumper wire
NO
(Para 8-48).
YES
2-462
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