DRAFT
TB 9-2320-364-13&P-1
AC HEATER/EVAPORATOR BLOWER OPERATES BUT NO COLD AIR FROM
DUCTS DURING AC OPERATIONS - Continued
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WARNING
26.
KNOWN INFO
TEST OPTIONS
Read WARNING on
Power to fan control switch OK.
Voltage test.
Blower operates.
AC condenser core not blocked or damaged.
REASON FOR QUESTION
Are 22 to 28 vdc measured on
AC compressor belts OK.
fan control switch, terminal C
AC heater/evaporator core not blocked or
If 22 to 28 vdc are not
damaged.
(wire 1156), when fan control
measured, fan control
switch is faulty.
switch is set to an on
Temperature control switch temperature
probe OK.
position?
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Heater cable OK.
AC cable OK.
Defrost cable OK.
AC compressor clutch OK.
AC harness wire 1154 OK.
Low pressure switch OK.
High pressure switch OK.
Replace fan control
AC harness wire 1158 OK.
switch (WP 0031).
NO
AC harness wire 1435 OK.
Verify repair, go to
AC harness wire 1155 OK.
Step 27 of this fault.
AC condenser assembly harness black wire
YES
OK.
AC condenser motor solenoid OK.
AC condenser motor red wire OK.
AC condenser motor ground wire OK.
AC condenser motor OK.
AC condenser assembly harness green wire
OK.
AC condenser motor solenoid ground wire
OK.
POSSIBLE PROBLEMS
Fan control switch faulty.
Wire 1156 faulty.
Temperature control switch faulty.
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AC harness wire 1156 faulty.
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0012-52
