Removing the resistor

Warning: The safety switch automatically turns off the power when the upper door of the Vallox ventilation unit is opened. Always disconnect the Vallox ventilation unit from the mains before starting maintenance.

To remove the resistor:

  1. Disconnect the ventilation unit from the mains electricity supply.
  2. Open the doors of the unit.
  3. Open the resistor box by undoing the mounting screws (10 PZ2 screws).
  4. Remove the quick connector of the resistor:
    1. Press down the locking device.
    2. Pull off the connector.
  5. Undo the two wing nuts connecting the resistor to the ventilation unit.
  6. Lift the resistor out of the ventilation unit.
    Warning:

    Before removing the resistor from the unit, make sure it is not hot.

  7. To reassemble the ventilation unit, follow the above steps in reverse order.
    Warning:

    Risk of fire! Connect the cables so that they do not touch the resistor.