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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TEST OPTIONS
WARNING
10.
KNOWN INFO
Read WARNING on
Voltage test.
Power to fan control switch OK.
Blower operates.
AC condenser core not blocked or damaged.
REASON FOR QUESTION
Are 22 to 28 vdc measured on
AC compressor belts OK.
AC harness wire 1154 at AC
If 22 to 28 vdc are not
AC heater/evaporator core not blocked or
measured, AC
compressor clutch connector,
damaged.
compressor clutch will not
when fan control switch is set
operate.
Temperature control switch temperature
to an on position and
probe OK.
temperature control switch is
AC harness wire 1155 OK.
set to the coldest temperature
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AC condenser assembly harness black wire
position?
OK.
AC condenser motor solenoid OK.
AC condenser motor red wire OK.
AC condenser motor ground wire OK.
Connect AC harness
AC condenser motor OK.
wire 1154 connector
AC condenser assembly harness green wire
to AC compressor
NO
OK.
clutch connector, and
go to Step 12 of this
fault.
OK.
Fan control switch OK.
Wire 1156 OK.
YES
Temperature control switch OK.
Heater cable OK.
AC cable OK.
Defrost cable OK.
POSSIBLE PROBLEMS
AC harness wire 1435 faulty.
AC compressor clutch faulty.
AC harness wire 1154 faulty.
Low pressure switch faulty.
AC harness wire 1156 faulty.
AC harness wire 1158 faulty.
High pressure switch faulty.
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0012-20