TB-9-2320-279-13-1

TECHNICAL BULLETIN; AIR CONDITIONING SYSTEM

OPERATOR’S, UNIT AND DIRECT SUPPORT MAINTENANCE MANUAL, INSTALLATION INSTRUCTIONS, AND REPAIR PARTS AND SPECIAL TOOLS LISTS

DECEMBER 2005

  TB-9-2320-279-13-1 - Page 121 of 524

TB 9-2320-279-13-1
0012-35
AC HEATER/EVAPORATOR BLOWER OPERATES BUT NO COLD AIR FROM
DUCTS DURING AC OPERATIONS - Continued
DRAFT
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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HEMAC160
VOLTAGE TEST
(1) Turn fan control switch to an on position (low,
medium, or high) (WP 0004).
(2) Turn AC temperature control switch to the coldest
position (fully clockwise) (WP 0004).
(3) If OFF, turn engine start switch ON
(TM 9-2320-279-10).
(4) Place positive (+) probe of multimeter on AC
condenser motor solenoid, terminal red wire.
(5) Place negative (-) probe of multimeter on a known
good ground.
(a) If 22 to 28 vdc are not measured, turn engine
start switch OFF and replace AC condenser
motor solenoid (WP 0027).
Verify repair, go to
Step 27 of this fault.
(b) If 22 to 28 vdc are measured, turn engine switch
OFF and go to Step 18 of this fault.


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