air filter RENAULT SCENIC 2009 J84 / 2.G Air Conditioning Manual Conditioning Workshop Manual

62C-11
MANUAL AIR CONDITIONING
Fault finding – Fault Finding Chart62C
V2 MR-372-J84-62C000$040.mif
MANUAL AIR CONDITIONING
Fault finding – Fault Finding Chart
ALP 2 Air distribution fault
NOTESNone.
Make sure the air circuit (cabin filter, scuttle panel grille, air ducts etc.) is not blocked.
Ensure that the passenger compartment ventilator fan is in good condition.
If necessary, repair, clean or replace the cabin filter.
Ensure that the passenger compartment fan unit is properly sealed.
Repair if necessary.
Switch the front passenger compartment fan to
full, the temperature control to maximum heat or
maximum cold, and move the air distribution
control.
Check that the air outlet is the one selected.
Has the customer complaint been
confirmed?
NO
Remove the dashboard and visually check that
moving the control alters the position of the
distribution flaps.
Is there movement?
NO
The air distribution is operating
correctly.
If necessary, explain how the system
works to the customer again.
Make sure the distribution flaps are
in good condition, the footwell
distribution flap linkages are in
position, and that there is no
mechanical obstruction.
If necessary, recondition, clean or
replace the heating and ventilation
unit.
YES
YES
AFTER REPAIRCheck that the system is operating correctly.

62C-13
MANUAL AIR CONDITIONING
Fault finding – Fault Finding Chart62C
V2 MR-372-J84-62C000$040.mif
ALP 3 Air flow fault
NOTESNone.
Is the passenger compartment fan working?
YES
Make sure the air circuit (cabin filter, scuttle panel grille, air ducts etc.) is not blocked.
Ensure that the passenger compartment blower is in good condition.
If necessary, repair, clean or replace the cabin filter.
With the cabin filter removed, put your hand into
the housing to ensure that the evaporator is not
being obstructed and that there is no ice.
Is the evaporator obstructed?
NO
Ensure that the passenger compartment fan unit is properly sealed. Also check that the air distribution ducts
(right and left, upper and lower) are correctly connected to the housing as well as the refrigeration pipe in the
glove box (if the customer complains about a feeling of cold air on the passenger side).
Repair if necessary.
Check that the air recirculation flap does not remain closed when in the recirculation position.
Repair if necessary.
Does the fault disappear when the air
distribution is changed?
NO
Repair, see ALP 5.
Remove the evaporator and clean
if it is blocked.
If there is ice on the evaporator,
perform a conformity check on the
temperature sensors (exterior and
coolant temperatures).
Replace any faulty components.
Ensure that all the air vents
are open.
If the fault is still present, see ALP 2.
NO
YES
YES
AFTER REPAIRCheck that the system is operating correctly.

62C-17
MANUAL AIR CONDITIONING
Fault finding – Fault Finding Chart62C
V2 MR-372-J84-62C000$040.mif
ALP 5 No passenger compartment ventilation
NOTESNone.
Check that the fusesare in good condition.
Make sure that the air circuit (cabin filter, scuttle panel grille, air vents and extractors etc.) is not blocked.
Ensure that the passenger compartment blower is in good condition.
Repair, clean or change the cabin filter if necessary.
Ensure that the passenger compartment fan unit is properly sealed.
Repair if necessary.
Check that the air recirculation flap does not remain closed when in the recirculation position.
Repair if necessary.
Does the fault disappear when the air
distribution is changed?
NO
Ensure that there is + 12 V accessories supply on track B1 of the resistor unit and an earth on track A1 of the
control panel connector.
Repair if necessary.
Ensure that all the air vents are open.
If the fault is still present, see ALP 2.
YES
AFTER REPAIRCheck that the system is operating correctly.

62C-19
MANUAL AIR CONDITIONING
Fault finding – Fault Finding Chart62C
V2 MR-372-J84-62C000$040.mif
AFTER REPAIRCheck that the system is operating correctly.
ALP 11 Unpleasant odours in the passenger compartment
NOTESNone.
Check that the cabin filter is not blocked or damaged.
Replace it if necessary.
Is the fault still present?
YES
Check that the condensation evacuation pipe
(water from the evaporator) is not blocked.
Repair if necessary.
Is the fault still present?
YES
Check the sealing of the heating unit in relation to the
engine compartment:
–Foam seal on the heater matrix coolant pipes fitted and
in good condition.
–Rubber seal on the radiator tank fitted and in good
condition (seal under the bonnet separating the engine
compartment from the windscreen aperture).
–Water evacuation valve on the radiator tank fitted and in
good condition.
Repair if necessary.
Is the fault still present?
YES
Remove the cabin filter to apply air conditioning system
cleaner using an extension pipe on the evaporator.
Spray the entire contents of the aerosol.
Leave the product to work for 15 minutes.
End of fault finding
procedure.
End of fault finding
procedure.
End of fault finding
procedure.
NO
NO
NO

MANUAL AIR CONDITIONING
Fault finding – Fault Finding Chart62C
62C-23V2 MR-372-J84-62C000$040.mif
ALP 15 Passenger compartment ventilation noises
NOTESOnly deal with this customer complaint after a full check with the diagnostic tool
(fault reading and configuration checks).
The aim of the following operations is to check and, if necessary, eliminate any foreign bodies (leaves,
insects, other, etc.) in:
–the passenger compartment air inlet,
–the cabin filter housing,
–the housing and on the fan assembly.
Check the passenger compartment air inlet and the cabin filter housing:
Remove:
–the scuttle panel grille (see MR 371 Bodywork, 55A, Exterior equipment, Scuttle panel grille: Removal -
Refitting),
–the air filter access panel,
–the scuttle panel partition,
–the cabin filter.
Check that there are no foreign bodies (leaves, insects, other, etc.) and, if necessary, clean the passenger
compartment air inlet and the cabin filter housing.
Refit:
–the cabin filter,
–the scuttle panel partition,
–the air filter access panel,
the scuttle panel grille (see MR 371 Bodywork, 55A, Exterior equipment, Scuttle panel grille: Removal -
Refitting).
Check the housing and the fan assembly:
Remove the fan assembly (see MR 370 Mechanical, 61A, Heating, Fan assembly: Removal - Refitting).
Check that there are no foreign bodies (leaves, insects, other, etc.) and, if necessary, clean the fan assembly
housing.
Check that there are no foreign bodies (leaves, insects, other, etc.) and, if necessary, clean the fan assembly.
Refit the fan assembly (see MR 370 Mechanical, 61A, Heating, Fan assembly: Removal - Refitting).
AFTER REPAIRCarry out a complete check using the diagnostic tool.