1998 RENAULT KANGOO heater

c11010.0
AIR CONDITIONING
Fault finding charts
62
KANGOO
ALL TYPES
Check that the components which were removed are connected correctly.
Check that the system operates correctly.AFTER
REPAIR
yes
CHART 3
CONT
A
noChange the thermostat.
yes
yes
noEnd of fault finding.
noEnd of fault finding.
With the engine cold, remove the engine
coolant thermostat and check that it is not
jammed in the open position.
Is it correct?
Check that there is no unwanted intake of
cold air into the passenger compartment
(seals, grommets, cables ...).
Repair if necessary
Does the fault persist?
Check the air inlets (particle filter)
and outlets.
Partially blocked air inlets or outlets
reduce the flow of heated air
into the
passenger compartment.
Repair if necessary.
Does the fault persist?
The heater radiator must be blocked. Remove
the radiator and clean or change it
(only valid for vehicles which have been
driven without the particle filter).
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c11010.0
AIR CONDITIONING
Fault finding charts
62
KANGOO
ALL TYPES
AFTER
REPAIR
no
CHART 4NO HEAT
NOTES
Is it an air flow problem?yesSee CHART 2.
yes
yes
noSee CHART 1.
noEnd of fault finding.
noEnd of fault finding.
Before carrying out any work, check that the customer uses the air conditioning
correctly.
Non regulated air conditioning.
Check the level of coolant in the cooling
circuit.
NOTE: if the coolant level is too low, the cir-
cuit may become unprimed when driving at
low load and at idle.
Repair if necessary.
Does the fault persist?
Visually check that moving the control
moves the mixing flap.
Does it move?
yes
Check the coolant circuit.
NOTE: fitting an oil, water or air cooler which
has not been approved by the research centre
and which is incorrectly connected may re-
duce or even stop the flow of coolant in the
heater radiator.
Repair the coolant circuit if necessary.
Does the fault persist?
Remove the heater radiator.
Clean or change it if necessary.
Check that the components which were removed are connected correctly.
Check that the system operates correctly.
62-24

c11010.0
AIR CONDITIONING
Fault finding charts
62
KANGOO
ALL TYPES
AFTER
REPAIR
CHART 7DEICING/DEMISTING PERFORMANCE POOR
NOTES
See CHART 1.
yes
yes
yes
See CHART 2.
no
yes
See CHART 3.
no
yes
no
Check that the recirculation flap is not
jammed in the recirculated air position
(see CHART 11).
Repair if necessary.
Is it a heater performance problem?
Is it an air flow problem?
Is it an air distribution problem?
Check that the windows are clean on the inside.
End of fault finding.no
End of fault finding.no
Check that the air extractors
are not blocked.
Repair if necessary.
Does the fault persist?
Ensure that there are no water leaks into the
passenger compartment which would
significantly increase the humidity level and
reduce the effectiveness of the demisting.
Locate the leak and repair it.
Does the fault persist?
Check that the components which were removed are connected correctly.
Check that the system operates correctly.
62-27

c11010.0
AIR CONDITIONING
Fault finding charts
62
KANGOO
ALL TYPES
AFTER
REPAIR
CHART 13AIR CONDITIONING PROBLEMS
Too cold
NOTES
yes
no
noSee CHART 11.
yes
noSee CHART 1.
yes
noReadjust the cable.
yes
Change the fan assembly.
Before carrying out any work, check that the customer uses the air conditioning
correctly.
Non regulated air conditioning.
Is the fan assembly always operating?
(normal if high pressure ≥ 20 bars)
Check that the recirculation flap does not
remain in the recirculated air position.
Operate the control button
and check that the flap moves.
Does it move?
Check that the action of the
heater control
moves the flap.
Does it move?
Visually check that
the flap travel is complete.
Is it correct?
Check the coolant circuit pressures using the
XR25 or pressure gauges.
The fan assembly operates if the high
pressure ≥ 20 bars and stops if the pressure
≤15 bars.
If the pressures are correct, change
the pressure sensor, otherwise, top up
the coolant circuit.
Check that the components which were removed are connected correctly.
Check that the system operates correctly.
62-36

TIGHTENING TORQUES (in daN.m)
AIR CONDITIONING
Evaporator
62
13831R
Pressure relief valve to evaporator bolt 0.6
Connecting pipes to pressure relief valve
retaining nut 0.8
Pressure relief valve connecting pipe to
dehydration canister retaining bolt 0.8
Condenser connecting pipe to
dehydration canister retaining bolt 1.2
Compressor connecting pipe to condenser
retaining bolt 0.8
Connecting pipes to compressor
retaining bolt 2.1
Compressor retaining bolt 2.1
Circuit pressure sensor 0.8
REMOVAL
Disconnect the battery.
Drain the R134a coolant circuit using the filling
equipment.
Disconnect the R134a connecting pipes (bolt 1) to
the pressure relief valve.
Install the plugs on the pipes and the pressure re-
lief valve.Remove:
- the windscreen wiper arms,
- the air inlet grille,
- the six plenum chamber closure panel (2) retai-
ning bolts (A) and remove the plenum cham-
ber,
- the evaporator protector in the plenum cham-
ber.
Disconnect the electrical connectors (4) and the
earth leads (5).
Remove the intermediate sleeve (6) between the
evaporator housing and the heater fan assembly.
13826R
62-48

AIR CONDITIONING
Air blower unit
62
REMOVAL
An air blower unit can only be changed following
removal of the evaporator (refer to the
"Evaporator" section).
Remove the two heater fan assembly mounting
bolts.
Remove the heater fan assembly.
REFITTING
Refitting does not present any special points.
After refitting the heater fan assembly and the
evaporator, create a vacuum and then fill the
R134a coolant circuit using the filling equipment.
IMPORTANT
Ensure that all of the seals are positioned correct-
ly. Lubricate them with
P.A.G. SP 10 oil.
62-50