TB 9-2320-279-13-1
0012-18
AC HEATER/EVAPORATOR BLOWER OPERATES BUT NO COLD AIR FROM
DUCTS DURING AC OPERATIONS - Continued
DRAFT
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KNOWN INFO
Power to fan control switch OK.
Blower operates.
AC condenser core not blocked or damaged.
AC compressor belts OK.
AC heater/evaporator core not blocked or
damaged.
AC temperature control switch temperature
probe OK.
AC condenser motor solenoid OK.
AC condenser motor power wire OK.
AC condenser motor ground wire OK.
AC condenser motor OK.
AC condenser assembly harness black wire
OK.
AC harness wire 1155 OK.
AC condenser assembly harness green wire
OK.
AC condenser motor solenoid ground wire
OK.
Fan control switch OK.
Wire 1156 OK.
AC temperature control switch OK.
AC compressor clutch OK.
AC harness wire 1154 OK.
Low pressure switch OK.
AC harness wire 1156 OK.
AC harness wire 1158 OK.
High pressure switch OK.
Heater cable OK.
AC cable OK.
POSSIBLE PROBLEMS
Defrost cable faulty.
9.
Is defrost cable free from
damage and binding?
Replace defrost
cable (WP 0029).
Verify repair, go to
Step 27 of this fault.
NO
YES
Read WARNING on
page 0012-19.
WARNING
Go to work package 0015
(AC Does Not Cool Or Cools
Inadequately).
TEST OPTIONS
Visual inspection.
REASON FOR QUESTION
If defrost cable is binding or
damaged, the defrost
louver may not be
positioned correctly for AC
operations.