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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23.

WARNING

KNOWN INFO

TEST OPTIONS

Read WARNING on

Power to fan control switch OK.

page 0012-47.

Continuity test.

Blower operates.

Multimeter.

AC condenser core not blocked or damaged.

REASON FOR QUESTION

Is continuity measured

AC compressor belts OK.

across AC condenser motor

AC heater/evaporator core not blocked or

If continuity is measured, AC

damaged.

solenoid ground wire?

condenser motor solenoid

is faulty. If not, AC

AC temperature control switch temperature

condenser motor solenoid

probe OK.

ground wire is faulty.

Heater cable OK.

AC cable OK.

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Defrost cable OK.

AC compressor clutch OK.

Repair AC condenser

AC harness wire 1154 OK.

motor solenoid ground

Low pressure switch OK.

wire (see Appendix A).

Verify repair, go to

AC harness wire 1158 OK.

Step 27 of this fault.

High pressure switch OK.

AC condenser motor power wire OK.

YES

AC condenser motor ground wire OK.

AC condenser motor OK.

AC condenser assembly harness black wire

Replace AC condenser motor

OK.

solenoid (WP 0027). Verify

AC harness wire 1155 OK.

repair, go to Step 27 of this

fault.

Fan control switch OK.

Wire 1156 OK.

AC harness wire 1156 OK.

AC temperature control switch OK.

AC condenser assembly harness green wire

OK.

POSSIBLE PROBLEMS

AC condenser motor solenoid faulty.

AC condenser motor solenoid ground wire

faulty.

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0012-46