AC HEATER/EVAPORATOR BLOWER OPERATES BUT NO COLD AIR FROM DUCTS DURING AC OPERATIONS - continued

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

KNOWN INFO

TEST OPTIONS

Read WARNING on

Power to fan control switch OK.

page 0012-15.

Visual inspection.

Blower operates.

REASON FOR QUESTION

AC condenser core not blocked or damaged.

Is heater cable free from

AC compressor belts OK.

If heater cable is binding or

damage and binding?

damaged, the heater

AC heater/evaporator core not blocked or

control valve may not be

damaged.

closed completely during

Temperature control switch temperature

AC operations.

probe OK.

AC harness wire 1155 OK.

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AC condenser assembly harness black wire

OK.

AC condenser motor solenoid OK.

AC condenser motor red wire OK.

Replace heater cable

AC condenser motor ground wire OK.

(WP 0032). Verify

AC condenser motor OK.

repair, go to Step 29

of this fault.

AC condenser assembly harness green wire

OK.

YES

AC condenser motor solenoid ground wire

OK.

Fan control switch OK.

Wire 1156 OK.

Temperature control switch OK.

AC harness wire 1435 OK.

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.

POSSIBLE PROBLEMS

Heater cable faulty.

AC cable faulty.

Defrost cable faulty.

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0012-14