AC HEATER/EVAPORATOR BLOWER DOES NOT OPERATE IN ALL SPEEDS (LOW, MEDIUM, AND HIGH) (Cont)

DRAFT

TB 9-2320-279-13-1

AC HEATER/EVAPORATOR BLOWER DOES NOT OPERATE IN ALL SPEEDS

(LOW, MEDIUM, AND HIGH) - Continued

WARNING

Remove rings, bracelets, wristwatches, neck chains, and any other jewelry before working around

vehicle. Jewelry can catch on equipment and cause serious injury. Jewelry or tools may short

across electrical circuits or terminals and cause damage to equipment or severe burns or

electrical shock to personnel.

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VISUAL INSPECTION

(1) Remove eight screws and top heater cover

(2) Remove four screws, washers, lockwashers, and

cover from AC heater/evaporator assembly

(3) Inspect fan control switch, fan control switch

harness, and AC heater/evaporator blower motor

resistor harness for loose connections.

(a) If fan control switch harness connections are

loose, connect connections (WP 0031) and go

to Step 2 of this fault.

(b) If AC heater/evaporator blower motor resistor

harness connections are loose, connect

connections (WP 0036) and go to Step 2 of this

fault.

HEMAC129