Removing and cleaning the extract air fan (B)

A
Supply air fan
B
Extract air fan
1
Fine filter
2
Wing bolts
3
Quick connector of the cable

To clean the extract air fan:

  1. Disconnect the ventilation unit from the mains electricity supply.
  2. Lift the latch to open the door of the ventilation unit.
  3. Lift the door off.
    CAUTION: The door is heavy.
  4. The fan has been fastened on the mounting plate with wing bolts (2). Remove the wing bolts and lift the fan out of the unit.
  5. Disconnect the quick connector of the fan cable (3).
  6. Clean the fan. The fan blades can be cleaned with compressed air (wear protective goggles) or by brushing them gently. Do not remove or move the fan blade balancing weights.
  7. To reassemble the ventilation unit, follow the above steps in reverse order.
  8. Close the door of the unit. Ensure that the safety switch catch of the door is touching the safety switch, allowing the unit to be turned on.
  9. Plug the ventilation unit back into the mains.
  10. The extract air fan has now been checked and cleaned.