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Page Title:
AC HEATER/EVAPORATOR BLOWER OPERATES BUT NO COLD AIR FROM DUCTS DURING AC OPERATIONS (Cont) |
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 DRAFT
TB 9-2320-279-13-1
AC HEATER/EVAPORATOR BLOWER OPERATES BUT NO COLD AIR FROM
DUCTS DURING AC OPERATIONS - Continued
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START
WARNING
1.
KNOWN INFO
TEST OPTIONS
Read WARNING on
Power to fan control switch OK.
Visual inspection.
Blower operates.
REASON FOR QUESTION
Is AC condenser core free
POSSIBLE PROBLEMS
If AC condenser core is
from damage and debris?
damaged or blocked, AC
AC condenser core blocked or damaged.
system will not operate
AC compressor belts loose or damaged.
properly.
AC heater/evaporator core blocked or
damaged.
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AC temperature control switch temperature
probe damaged or installed incorrectly.
Heater cable faulty.
If AC condenser core
AC cable faulty.
is damaged, recover
Defrost cable faulty.
R-134a refrigerant
AC compressor clutch faulty.
(WP 0050). Replace
AC condenser core
AC harness wire 1154 faulty.
(WP 0024) and AC
High pressure switch faulty.
condenser dryer
AC harness wire 1156 faulty.
Evacuate and charge
AC harness wire 1158 faulty.
system (WP 0050).
Low pressure switch faulty.
NO
Verify repair, go to
AC condenser motor solenoid faulty.
Step 27 of this fault.
AC condenser motor power wire faulty.
If AC condenser core
YES
AC condenser motor ground wire faulty.
is blocked with
AC condenser motor faulty.
debris, remove
blockage. Verify
AC condenser assembly harness black wire
repair, go to Step 27
faulty.
of this fault.
AC harness wire 1155 faulty.
AC condenser assembly harness green wire
faulty.
AC condenser motor solenoid ground wire
faulty.
Fan control switch faulty.
Wire 1156 faulty.
AC temperature control switch faulty.
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0012-2
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