MacBook Unibody Model A1278 Fan Replacement

Replacing a defective fan will keep your laptop running cool.

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Edit Step 1 Access Door  ¶ 

  • With the case closed, place the Unibody top-side down on a flat surface.

  • Depress the grooved side of the access door release latch enough to grab the free end. Lift the release latch until it is vertical.

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Edit Step 2  ¶ 

  • The access door should now be raised enough to lift it up and out of the Unibody.

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Edit Step 3 Battery  ¶ 

  • Be sure the access door release latch is vertical before proceeding.

  • Grab the white plastic tab and pull the battery up and out of the Unibody.

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Edit Step 4 Lower Case  ¶ 

  • Remove the following eight screws securing the lower case to the chassis:

    • One 3 mm Phillips screw.

    • Three 13.5 mm Phillips screws.

    • Four 3.5 mm Phillips screws.

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Edit Step 5  ¶ 

  • Using both hands, lift and remove the lower case off the upper case.

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Edit Step 6 Fan  ¶ 

  • Use a spudger to pry the fan connector straight up off the logic board.

  • It is useful to twist the spudger axially from beneath the fan cable wires to release the connector.

  • The fan socket and the fan connector can be seen in the second and third pictures. Be careful not to break the plastic fan socket off the logic board as you use your spudger to lift the fan connector straight up and out of its socket. The layout of the logic board shown in the second picture may look slightly different than your machine but the fan socket is the same.

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Edit Step 7  ¶ 

  • Remove the following three screws securing the fan to the upper case:

    • Two 5 mm Phillips screws.

    • One 7 mm Phillips screw.

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Edit Step 8  ¶ 

  • Lift the fan out of the upper case.

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

For more information, check out the MacBook Unibody Model A1278 device page.

Required Tools

Spudger

$2.95 · 50+ In stock

Phillips #00 Screwdriver

$5.95 · 50+ In stock

Recommended Tools

Universal Drive Adapter

$29.95 · 50+ In stock

iFixit Lock Pick Set

$29.95 · 50+ In stock

Inspection Scope

$39.95 · 50+ In stock

Frictionless Ratchet

$24.95 · 50+ In stock

Portable Anti-Static Mat

$34.95 · 43 In stock

Comments Comments are onturn off

On my model, it seemed the top-left was 3.5mm and the bottom 4 were 3 mm.

Jim, · Reply

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