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Page Title:
AC HEATER/EVAPORATOR BLOWER OPERATES BUT NO COLD AIR FROM DUCTS DURING AC OPERATIONS - continued |
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 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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24.
WARNING
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.
AC condenser assembly
AC heater/evaporator core not blocked or
If 22 to 28 vdc are not
damaged.
harness green wire at AC
measured, AC condenser
assembly harness green
condenser fan motor solenoid
Temperature control switch temperature
wire is faulty.
probe OK.
terminal, when fan control
Heater cable OK.
switch is set to an on position
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and temperature control
AC cable OK.
switch is set to the coldest
Defrost cable OK.
temperature position?
AC compressor clutch OK.
AC harness wire 1154 OK.
Low pressure switch OK.
High pressure switch OK.
AC harness wire 1158 OK.
Repair AC condenser
AC harness wire 1435 OK.
assembly harness
AC harness wire 1155 OK.
green wire (see
NO
Appendix A). Verify
Fan control switch OK.
repair, go to Step 29
Wire 1156 OK.
of this fault.
YES
Temperature control switch OK.
AC harness wire 1156 OK.
AC condenser assembly harness black wire
OK.
AC condenser motor red wire OK.
AC condenser motor solenoid ground wire
OK.
AC condenser motor OK.
POSSIBLE PROBLEMS
AC condenser assembly harness green wire
faulty.
AC condenser motor solenoid ground wire
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faulty.
AC condenser motor solenoid faulty.
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0012-48
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