Remove the fan and fan shroud

Follow these steps to remove the fan.

  1. Complete the following procedures:
    1. Set the power switch to OFF (O), disconnect the power cord from the power source, and disconnect the gas supply.
    2. Remove the plasma power supply cover and handle.
  2. Detach the fan wire connector from J7 on the power Printed Circuit Board (PCB).

    Lift the top edge of the component barrier to see the connector.

  3. Remove the fan wires from the pass-through at the top of the center panel and from the clip on the center panel.
    Note:

    If you have the RS-485 serial port installed, you may need to disconnect the RS-485 PCB from J11 on the power PCB to untangle the wires from the PCB and the fan.

  4. Carefully remove the plenum from the fan casing.

    Release the clips in the top 2 corners of the plenum before releasing the bottom 2 clips.

    Note:

    If necessary, use needle-nose pliers to compress and release the top 2 corner clips before working the bottom 2 clips free from the fan casing.

  5. Remove the fan by pushing back the 2 clips on the right side of the fan until the fan assembly is released.
    Note:

    The fan does not use any mounting screws to attach to the center panel.

    The image shows the plasma power supply interior with a detailed view of the fan clip locations.
    1 Fan wire connector
    2 Fan plenum
    3 Fan clips