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PART 16-1- VENTILATING SYSTEM AND HEATER
16-3
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FIG. 1 - Fresh Air Ventilation.
blower speeds.
HEATING AND DEMISTING
For maximum effect :
1. The left hand air duct must
be
fully closed.
2. The temperature control lever
moved to the "HOT" position.
3. The fan switched to the "HI"
position.
The distribution lever may
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be
moved to either the "FLOOR" or
"SCREEN" positions, intermediate
positions may be selected to give
combined
effects.
COOL AIR VENTILATION
With the temperature control in
the cold position, the unit will
function as a ventilation system,
directing the air flow to the interior
or screen as required.
MIXED VENTILATION
Should it be desirable, with the
right and left hand air vents full open,
cool air may
be
admitted to face
level with warm air being directed
to the screen or to the interior or
both, by normal operation of the
heater.
EJ
DIAGNOSIS AND TESTING
VENTILATING AND HEATING TROUBLE DIAGNOSIS GUIDE
1. Burned out fuse or loose wires
6. Improperly connected heater
to the heater blower.
hoses.
2. Defective ground, or defective
7. Plugged heater core, or a1r
INSUFFICIENT OR NO
blower motor.
outlet.
HEAT
3. Fan loose on motor shaft, or
8. Improperly installed or defec-
motor stalled.
tive engine thermostat.
4. Defective heater blower switch.
9. Incorrectly installed and ad-
5. A kinked, clogged, or collapsed
justed control cables.
water hose.
10. Air leaks in the body.
1. Improperly adjusted demister
INSUFFICIENT OR NO
control cable.
2. Plugged or loose defroster noz-
DEMISTING
zle obstructed demister openings at
windshield.
TOO MUCH HEAT
I. Incorrectly adjusted tempera-
ture control door.
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