| | Results of the tests |
| 1 | AIR SUPPLY DUCTS CHECK | All OK | Problems met | Operation |
|---|
| Check
the air supply ducts: they should not be obstructed with dirt or
foul smelling substances | Continue to Step 2 | Vents malfunction | Wash the ducts (after removing
the electric fan)Restore the ducts (see Assembly 5010B) |
| 2 | HEATER RADIATOR CHECK | All OK | Problems met | Operation |
|---|
| Check
the heater radiator: the outer fins should not be obstructed with
dirt or other substances | Continue to Step 3 | Radiator dirty or obstructed | Clean the radiator or replace
it Op. 5020A50 |
| 3 | CHECKING CORRECT OPERATION | All OK | Problems met | Operation |
|---|
| Check
that the fault is no longer present | End of diagnosis | Fault persists | Search for the
fault starting from another symptom' |