| | Test results |
| 0 | PRELIMINARY CHECKS | All OK | Problems encountered | Operation |
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| First of all, check the following with the compressor ON:- that the condensation drainage is not blocked;- that condensation drains outside the passenger compartment;- that the condensation drainage is not damaged;- that the air/recirculation intake is not working;- that there are no unpleasant smells coming from the outside by activating the recirculation- that the smell does not come from the fan, ceramic resistor or speed regulator overheating (auto version). | Move on to Step 1 | 1. Condensation drainage blocked2. The condensation is draining directly into the vehicle3. Condensation drainage damaged4. Recirculation not working5. Smells coming from the outside6. Smells from overheated fan, resistor or speed regulator | 1. Clean the condensation drainage2. Restore the correct operation of the condensation drainage3. Replace the condensation drainage4. Continue as indicated See table L016 CLIMATE CONTROL RECIRCULATION NOT WORKING 5. Move on to Step 56. Replace damaged component |
| 1 | POLLEN FILTER CHECK | All OK | Problems encountered | Operation |
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| Check the condition of the pollen filter | The pollen filter should be replaced at least once a year |
| Move on to Step 2 | Filter obstructed | Replace the filter element Op. 5010B08 CLIMATE CONTROL OUTSIDE AIR PURIFYING (POLLEN) FILTER - R.R. |
| 2 | AIR INLET DUCTS CHECK | All OK | Problems encountered | Operation |
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| Check the air inlet ducts: they should not be obstructed with dirt or unpleasant smelling substances. | Move on to Step 3 | Ducts blocked | Wash the ducts. |
| 3 | EVAPORATOR CHECK | All OK | Problems encountered | Operation |
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| With the engine started and the climate control system off (compressor OFF button), place the temperature knob in the max heat position and activate the fan. Check that the bad smell disappears. | Move on to Step 6 | The smells persist | Move on to Step 4 |
| 4 | RADIANT MASS CHECK | All OK | Problems encountered | Operation |
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| Check that the fins of the radiant mass are not blocked with dirt or other substances.With the vehicle engine on, engine temperature warm or climate control system (temperature) knob set to max heat, check for fluid leaks inside the vehicle from the plastic tank or the radiant mass case | End of diagnosis | 1. Radiant mass dirty or blocked2. Fluid leak from the radiant mass | 1. Clean the radiant mass2. Replace the radiant mass |
| 5 | AIR INTAKE CHAMBER CLEANLINESS CHECK | All OK | Problems encountered | Operation |
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| Check that there are no foreign bodies inside the air intake chamber. In particular, check that the seal between the air intake chamber and the engine compartment is perfect. | End of diagnosis | 1. Air intake chamber dirty.2. Seal not perfect. | 1. Clean the air intake chamber.2. Refit the seal correctly |
| 6 | EVAPORATOR REPLACEMENT | All OK | Problems encountered | Operation |
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| Replacement of the evaporator (check whether it is possible to clean it) | The use of Aircomatic equipment amd Wynn''s Airco-clean is recommended for disinfecting the mould on the evaporator and the directions should be followed. |
| End of diagnosis | Evaporator covered in mould | Ask the customer whether it is the first time that the problem occurs, in which case the evaporator should be cleaned;If the customer complains for the 2nd time more than 6 months later, continue to clean the evaporator, if it is less than 6 months replace the evaporator Op. 5040C66 AIR CONDITIONING EVAPORATOR - R+R WITH AIR CONDITIONING CASING REMOVED |