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HVAC
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HVAC
10.1.6 TROUBLESHOOTING
A.C .CHECK POINT
SR.No. CHECK POINTS
NORMAL CONDITION
RESULTS
A
PASSENGER CABIN
Fresh / recirculation lever
position.
Should be in recirculation
mode.
Will stop entry of hot air from out-
side.
Air direction knob position.
Should be in face mode.
Will ensure proper cooling
Temperature control lever
position.
Should be in maximum cool
position.
Will ensure that heater is not
working with A.C ON.
Grill direction
Centre grill towards rear
seats.
Will ensure proper distribution of
air in the vehicle.
Side grill towards passen-
ger & driver seat
B
Engine room
Condenser surface
Should be clean and dust /
dirt free.
Will ensure total liquidification of
refrigerant.
Engine coolant level
Should be on maximum
level
Will prevent engine from over
heating.
Engine tuning
Should be as per specifica-
tions.
Will prevent engine room over
heating and increase in fuel con-
sumption.
Belt tension
Belt should not be too loose
or too tight.
Loose belt will slip and affect AC
performance