1844 / 1906
HVAC
30
23.5 TROUBLESHOOTING
Note
For Electrical trouble shooting using blink codes refer section Blink Code Diagnostics.
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 lever 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 work-
ing with A.C ON.
Grill direction
Centre grill towards rear
seats.
Will ensure proper distribution of
air in the vehicle.
Side grill towards passenger
& 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 heat-
ing.
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.