AC HEATER/EVAPORATOR BLOWER OPERATES BUT NO COLD AIR FROM DUCTS DURING AC OPERATIONS (Cont)

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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WARNING

KNOWN INFO

TEST OPTIONS

Read WARNING on

Power to fan control switch OK.

Visual inspection.

page 0012-19.

Blower operates.

REASON FOR QUESTION

AC condenser core not blocked or damaged.

Is defrost cable free from

If defrost cable is binding or

AC compressor belts OK.

damage and binding?

damaged, the defrost

AC heater/evaporator core not blocked or

louver may not be

damaged.

positioned correctly for AC

operations.

AC temperature control switch temperature

probe OK.

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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

Replace defrost

OK.

cable (WP 0029).

AC harness wire 1155 OK.

Verify repair, go to

Step 27 of this fault.

AC condenser assembly harness green wire

OK.

YES

AC condenser motor solenoid ground wire

OK.

Fan control switch OK.

Go to work package 0015

Wire 1156 OK.

(AC Does Not Cool Or Cools

AC temperature control switch OK.

Inadequately).

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.

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0012-18