With the engine started, set the climate control system control unit to the AUTO position, adjust the temperature to 22 °C, place the recirculation at the outside air intake and the distribution to the front position.

Adjust the fan button (up arrow), gradually increasing the speed set and then decrease the speed using the button (down arrow), thereby checking the effect of the air flow rate variation.

Connect the diagnostic equipment and check:

• that there are no errors at the passenger compartment fan;
• that there are no errors at the distribution actuator;
• that there are no errors linked to the fan (short circuit errors)

1. Error at the passenger compartment fan.

2. Fan operating module error.

3. Error at the distribution actuator.

4. Short circuit error.

1. Move on to Step 5

2. Move on to Step 5

3. Move on to Step 6

4. Move on to Step 4

Check that the air ducts are intact and the vents are not blocked and are correctly positioned in the opening.

Check that the pollen filter is not obstructed.

1. Air ducts or vents obstructed.

2. Pollen filter blocked.

1. Restore the operation of the air ducts and the vents, removing any material causing an obstruction.

2. Replace the pollen filter

Op. 5010B08 CLIMATE CONTROL OUTSIDE AIR PURIFYING (POLLEN) FILTER - R.R.

Renew the electrical connections.

See E6020 AIR CONDITIONING

Check whether the electrical wiring connections are loose.

Disconnect/reconnect the connection to the engine mounting.

Disconnect the connector and connect to a feeder.

In these conditions the motor should rotate at the maximum speed, indicating that the operating module is not working

1. Electrical connections loose

2. The fan does not work.

3. The operating module does not work.

1. Renew the correct connections

See E6020 AIR CONDITIONING

2. Replace the fan

Op. 5040C30 AIR CONDITIONING FAN - R.R.

3. Replace the fan motor electronic transformer

Op. 5040C44 FAN MOTOR ELECTRONIC VARIATOR - R+R

Check whether the electrical wiring connections are loose.

Disconnect and visually inspect for damage at the connector contacts and reconnect the connection to the motor mounting.

If it persists, before replacing the actuator, check its operation by manually activating the function that the actuator should carry out.

With the engine running, switch on the fan at maximum speed.

Place the flaps in the various distribution positions via the control/control unit (manually).

Check the air flow in the passenger compartment with your hand at the relevant vents.

1. Electrical connections loose or damaged.

2. There is no air flow intake into the passenger compartment through the vents.

1. Renew the electrical connections.

See E6020 AIR CONDITIONING

2. Move on to Step 7

1. The actuator does not turn.

2. Kinematic components or flaps broken/stuck

1. Replace the distribution actuator.

Op. 5040D63 AIR DISTRIBUTION FLAP CONTROL ACTUATORS- R.R. WITH AIR CONDITIONING CASING REMOVED

2. Replace the component that is faulty.

Check that the fan is working at the maximum speed: if it only works at the maximum speed, the resistor should be replaced.

Check whether the resistor thermal fuse is broken by measuring the electrical continuity at the thermal fuse securing points.

Replacement of ceramic resistor

Op. 5040C48 A/C FAN MOTOR RESISTOR - R+R

Check for loose connections in the electrical wiring. Disconnect/reconnect the connection to the engine mounting.

Check that it rotates at all speeds by activating them using the switch. If it does not rotate at the maximum speed, check the vehicle fuse. If the defect persists, before replacing it, provide a direct battery supply and check that it rotates at maximum speed.

1. Electrical connections loose.

2. Fan not working.

1. Refit the electrical connections correctly.

2. Replace the fan

Op. 5040C30 AIR CONDITIONING FAN - R.R.