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Miscellaneous—Operational Checkout
KR46761,0001414 -19-01AUG18-51/50
LOOK: Does temperature setting increase?
FEEL: Does warm air come from the vents?
Turn temperature control/mode switch counterclockwise to maximum cold position.
LOOK: Does vent position change?
LOOK: Does temperature setting decrease?
FEEL: Does cool air come from the vents?
Press blower speed switch.
LISTEN: Does air conditioner compressor clutch solenoid “click”? (Air conditioner and
heater are ON in manual mode.)
LOOK: Does AUTO display go OFF?
Turn temperature control/mode switch clockwise to maximum heat position.
LOOK: Does vent position change?
LOOK: Does temperature setting increase?
FEEL: Does warm air come from the vents?
Turn temperature control/mode switch counterclockwise to maximum cold position.
LOOK: Does vent position change?
LOOK: Does temperature setting decrease?
FEEL: Does cool air come from the vents?
Press temperature control/mode switch.
LOOK: Does vent position change?
Repeat for all four vent positions.
LOOK: Does vent position change each time switch is pressed? YES: Checks complete.
Press blower speed switch.
NO: Heater fan does
not blow air. Check air
conditioner and heater 20
A fuse (marked HEATER)
(F3). See Replacing
Fuses. (Section 4-1.)
LOOK: Are air conditioner and heater OFF? (Press blower speed switch to start air
conditioner and heater.)
IF OK: See an authorized
Hitachi dealer.
4-2-45
112321
PN=325
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