Introduction

Keep temperatures down and replace that broken fan!

Image 1/1: Loosen the three Phillips screws securing the rear panel to the iMac.
  • Lay the iMac display-side down on a flat surface.

  • Loosen the three Phillips screws securing the rear panel to the iMac.

  • These screws are captive in the iMac. The center screw will stop turning after about 3.5 turns and the outer screws will stop turning after about 5.5 turns. Do not try to remove these screws from your iMac.

Some models (with light sensor) have only the two outboard screws.

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Image 1/2: Pull the rear panel toward yourself and remove it from the iMac. Image 2/2: Pull the rear panel toward yourself and remove it from the iMac.
  • Lift the rear panel slightly near the bottom of the iMac.

  • Pull the rear panel toward yourself and remove it from the iMac.

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Image 1/1: One 11 mm T10 Torx.
  • Remove the following two screws:

    • One 11 mm T10 Torx.

    • One 10.6 mm T8 Torx.

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Image 1/1:
  • Lift the fan duct out of the chassis.

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Image 1/1: If you bend the pins on the logic board during removal, use the fan connector as a guide to bend them straight.
  • Disconnect the right fan from the logic board by pulling its connector straight up.

  • If you bend the pins on the logic board during removal, use the fan connector as a guide to bend them straight.

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Image 1/1:
  • Remove the two 11.6 mm shouldered T8 Torx screws from the right fan.

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Image 1/2: Lift the fan out of the chassis. Image 2/2: De-route the fan cable as necessary.
  • Lift the fan near its outlet and rotate it toward yourself until its lower bracket clears the edge of the logic board.

  • Lift the fan out of the chassis.

  • De-route the fan cable as necessary.

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Conclusion

To reassemble your device, follow these instructions in reverse order.

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