| 40-60-80 | Fan running and pressure switch at rest. | The air pressure switch (60081725-01) does not close even though the fan is running; check the continuity of the micro switch when starting, the condition of the flue tubes/siphon, and the pressure drop in the venturi. |
| 40-60-70 | Extraction inconsistency: fan stopped and the pressure switch does not return to OFF. | Air pressure switch stuck/closed with the fan stopped; check with a multimeter (pressure switch contacts), inspect pressure hoses and ensure there is no water/obstructions in the flue circuit. |
| E05 | Flue pressure switch anomaly. | The pressure switch does not switch (does not close/open) during start-up; measure the continuity of the pressure switch and the fan depression, and check the pressure intake tubes and the flue outlet. |
| 6 07 | Pressure switch ON Fan OFF. | Pressure switch contact closed with fan stopped (pressure switch stuck or bypassed); check with a multimeter and inspect tubes/condensates that may give a false signal. |
| 6 08 | Pressure switch OFF Fan ON. | The pressure switch does not close with the fan running (rigid diaphragm or obstruction in tubes/pressure chamber); check the extractor's depression and the continuity of the pressure switch during start-up. |
