<?xml version="1.0" encoding="UTF-8"?>
<procedure locale="en" xmlns="http://omanual.com" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xsi:schemaLocation="http://omanual.com/openmanual_0.2.xsd">
   <title>Installing MacBook Air Models A1237 and A1304 Fan</title>
   <summary />
   <image>http://d3nevzfk7ii3be.cloudfront.net/igi/a1IAefBSJjMuJDUA</image>
   <author id="18">Walter Galan</author>
   <time_required />
   <difficulty>Moderate</difficulty>
   <categories>
      <category>MacBook Air Models A1237 and A1304</category>
   </categories>
   <introduction><div class="videoBox_center" style="width:592px;"></div>

<p>Replacing a defective fan is pretty easy and will keep your laptop running cool.</p></introduction>
   <introduction_rendered><div class="videoBox_center" style="width:592px;"></div>

<p>Replacing a defective fan is pretty easy and will keep your laptop running cool.</p><div class="parts"><strong>Relevant parts</strong><ul><li><a href="http://www.ifixit.com/MacBook-Parts/MacBook-Air-Original-Fan/IF188-008">MacBook Air (Original) Fan</a></li></ul></div><div class="tools"><strong>Tools</strong><ul><li><a href="http://www.ifixit.com/Apple-Parts/Arctic-Silver-ArctiClean/IF179-023">Arctic Silver ArctiClean</a></li><li><a href="http://www.ifixit.com/Apple-Parts/Arctic-Silver-Thermal-Paste/IF179-010">Arctic Silver Thermal Paste</a></li><li><a href="http://www.ifixit.com/Tools/Phillips-00-Screwdriver/IF145-006">Phillips 00 Screwdriver</a></li><li><a href="http://www.ifixit.com/Tools/Spudger/IF145-002">Spudger</a></li></ul></div></introduction_rendered>
   <tools>
      <tool notes="" thumbnail="http://da2lh5cs8ikqj.cloudfront.net/cart-products/SAM3F2psYM6hMMTu.mini" url="http://www.ifixit.com/Apple-Parts/Arctic-Silver-ArctiClean/IF179-023">Arctic Silver ArctiClean</tool>
      <tool notes="" thumbnail="http://da2lh5cs8ikqj.cloudfront.net/cart-products/o1AKBeskIEQej4tk.mini" url="http://www.ifixit.com/Apple-Parts/Arctic-Silver-Thermal-Paste/IF179-010">Arctic Silver Thermal Paste</tool>
      <tool notes="" thumbnail="" url="http://www.ifixit.com/Tools/Phillips-00-Screwdriver/IF145-006">Phillips 00 Screwdriver</tool>
      <tool notes="" thumbnail="http://da2lh5cs8ikqj.cloudfront.net/cart-products/whBKtCmrn6TIVby2.mini" url="http://www.ifixit.com/Tools/Spudger/IF145-002">Spudger</tool>
   </tools>
   <parts>
      <part notes="" thumbnail="" url="http://www.ifixit.com/MacBook-Parts/MacBook-Air-Original-Fan/IF188-008">MacBook Air (Original) Fan</part>
   </parts>
   <flags />
   <documents />
   <prerequisites>
      <prerequisite id="847" locale="en" path="/Installing-Lower-Case-847/procedure.xml">Installing MacBook Air Models A1237 and A1304 Lower Case</prerequisite>
      <prerequisite id="848" locale="en" path="/Installing-Battery-848/procedure.xml">Installing MacBook Air Models A1237 and A1304 Battery</prerequisite>
      <prerequisite id="859" locale="en" path="/Installing-Hard-Drive-859/procedure.xml">Installing MacBook Air Models A1237 and A1304 Hard Drive</prerequisite>
      <prerequisite id="853" locale="en" path="/Installing-Heat-Sink-853/procedure.xml">Installing MacBook Air Models A1237 and A1304 Heat Sink</prerequisite>
   </prerequisites>
   <steps>
      <step number="0" title="">
         <lines>
            <line bullet="black" level="0">Remove the following 10 screws securing the lower case to the Air:
               <text_raw>Remove the following 10 screws securing the lower case to the Air:</text_raw>
            </line>
            <line bullet="red" level="1">Six 2.8 mm Phillips screws.
               <text_raw>Six 2.8 mm Phillips screws.</text_raw>
            </line>
            <line bullet="orange" level="1">Two 3.8 mm Phillips screws.
               <text_raw>Two 3.8 mm Phillips screws.</text_raw>
            </line>
            <line bullet="yellow" level="1">Two 5.4 mm Phillips screws.
               <text_raw>Two 5.4 mm Phillips screws.</text_raw>
            </line>
         </lines>
         <images>
            <image orderby="1">http://d3nevzfk7ii3be.cloudfront.net/igi/YdQ32CY4ZKfWaZbD</image>
         </images>
      </step>
      <step number="1" title="">
         <lines>
            <line bullet="black" level="0">Slightly lift the lower case near the vents and push it toward the rear of the computer to free the mounting tabs.
               <text_raw>Slightly lift the lower case near the vents and push it toward the rear of the computer to free the mounting tabs.</text_raw>
            </line>
         </lines>
         <images>
            <image orderby="1">http://d3nevzfk7ii3be.cloudfront.net/igi/6LJgw4foS4BqQcZ4</image>
            <image orderby="2">http://d3nevzfk7ii3be.cloudfront.net/igi/qEWO2PIUpaRF4ZMG</image>
         </images>
      </step>
      <step number="2" title="">
         <lines>
            <line bullet="black" level="0">Disconnect the battery connector by pulling it straight out of its socket.
               <text_raw>Disconnect the battery connector by pulling it straight out of its socket.</text_raw>
            </line>
         </lines>
         <images>
            <image orderby="1">http://d3nevzfk7ii3be.cloudfront.net/igi/VNYlBOXhmBhhRH2n</image>
         </images>
      </step>
      <step number="3" title="">
         <lines>
            <line bullet="black" level="0">Remove the following nine screws securing the battery to the Air:
               <text_raw>Remove the following nine screws securing the battery to the Air:</text_raw>
            </line>
            <line bullet="red" level="1">Four 2.9 mm Phillips.
               <text_raw>Four 2.9 mm Phillips.</text_raw>
            </line>
            <line bullet="orange" level="1">Four 3.8 mm Phillips.
               <text_raw>Four 3.8 mm Phillips.</text_raw>
            </line>
            <line bullet="yellow" level="1">One 7.2 mm Phillips.
               <text_raw>One 7.2 mm Phillips.</text_raw>
            </line>
         </lines>
         <images>
            <image orderby="1">http://d3nevzfk7ii3be.cloudfront.net/igi/AXEt6ulWWPPhnkd4</image>
         </images>
      </step>
      <step number="4" title="">
         <lines>
            <line bullet="black" level="0">Lift the battery out of the Air.
               <text_raw>Lift the battery out of the Air.</text_raw>
            </line>
         </lines>
         <images>
            <image orderby="1">http://d3nevzfk7ii3be.cloudfront.net/igi/oTSXZsxJhtSHYHDZ</image>
         </images>
      </step>
      <step number="5" title="">
         <lines>
            <line bullet="black" level="0">Disconnect the port hatch ribbon cable from the logic board by pulling it straight up by its black pull tab.
               <text_raw>Disconnect the port hatch ribbon cable from the logic board by pulling it straight up by its black pull tab.</text_raw>
            </line>
            <line bullet="black" level="0">Pull the audio out ribbon cable off the adhesive securing it to the upper case.
               <text_raw>Pull the audio out ribbon cable off the adhesive securing it to the upper case.</text_raw>
            </line>
            <line bullet="black" level="0">Use a spudger to pry the audio out ribbon cable connector board off the hard drive bracket.
               <text_raw>Use a spudger to pry the audio out ribbon cable connector board off the hard drive bracket.</text_raw>
            </line>
         </lines>
         <images>
            <image orderby="1">http://d3nevzfk7ii3be.cloudfront.net/igi/tEDvxLoAOkWLcUW4</image>
            <image orderby="2">http://d3nevzfk7ii3be.cloudfront.net/igi/aGWH62rPoJV2CHgr</image>
            <image orderby="3">http://d3nevzfk7ii3be.cloudfront.net/igi/vkr1D1tXGORV4pJc</image>
         </images>
      </step>
      <step number="6" title="">
         <lines>
            <line bullet="black" level="0">Disconnect the audio out cable from its socket on the port hatch ribbon cable.
               <text_raw>Disconnect the audio out cable from its socket on the port hatch ribbon cable.</text_raw>
            </line>
         </lines>
         <images>
            <image orderby="1">http://d3nevzfk7ii3be.cloudfront.net/igi/FaQxPdBMW4FvKZ6g</image>
         </images>
      </step>
      <step number="7" title="">
         <lines>
            <line bullet="black" level="0">Use a spudger to pry the hard drive cable connector up off the logic board.
               <text_raw>Use a spudger to pry the hard drive cable connector up off the logic board.</text_raw>
            </line>
         </lines>
         <images>
            <image orderby="1">http://d3nevzfk7ii3be.cloudfront.net/igi/fdYFJHZCNFBNPoke</image>
         </images>
      </step>
      <step number="8" title="">
         <lines>
            <line bullet="black" level="0">Use the sharp end of a spudger to de-route the microphone cable from the hard drive bracket.
               <text_raw>Use the sharp end of a spudger to de-route the microphone cable from the hard drive bracket.</text_raw>
            </line>
            <line bullet="black" level="0">Remove the cosmetic screw cover from the adhesive securing it to the hard drive bracket.
               <text_raw>Remove the cosmetic screw cover from the adhesive securing it to the hard drive bracket.</text_raw>
            </line>
         </lines>
         <images>
            <image orderby="1">http://d3nevzfk7ii3be.cloudfront.net/igi/dHilYruXLwxGNxhQ</image>
            <image orderby="2">http://d3nevzfk7ii3be.cloudfront.net/igi/YYNJZaEUb6jTMknW</image>
         </images>
      </step>
      <step number="9" title="">
         <lines>
            <line bullet="red" level="0">Remove the four Phillips screws securing the hard drive assembly to the upper case.
               <text_raw>Remove the four Phillips screws securing the hard drive assembly to the upper case.</text_raw>
            </line>
         </lines>
         <images>
            <image orderby="1">http://d3nevzfk7ii3be.cloudfront.net/igi/GDb2BFN5NgGyqKqH</image>
         </images>
      </step>
      <step number="10" title="">
         <lines>
            <line bullet="black" level="0">Lift the hard drive assembly out of the upper case.
               <text_raw>Lift the hard drive assembly out of the upper case.</text_raw>
            </line>
         </lines>
         <images>
            <image orderby="1">http://d3nevzfk7ii3be.cloudfront.net/igi/AZunO3LXTkBgQlXF</image>
         </images>
      </step>
      <step number="11" title="">
         <lines>
            <line bullet="black" level="0">Use the tip of a spudger to pull the fan cable connector straight away from its connector on the logic board.
               <text_raw>Use the tip of a spudger to pull the fan cable connector straight away from its connector on the logic board.</text_raw>
            </line>
         </lines>
         <images>
            <image orderby="1">http://d3nevzfk7ii3be.cloudfront.net/igi/HqIlqSAZQLZo1qCo</image>
         </images>
      </step>
      <step number="12" title="">
         <lines>
            <line bullet="black" level="0">Use the tip of a spudger to move the cosmetic fan cover aside.
               <text_raw>Use the tip of a spudger to move the cosmetic fan cover aside.</text_raw>
            </line>
         </lines>
         <images>
            <image orderby="1">http://d3nevzfk7ii3be.cloudfront.net/igi/PIXEM12MAMHnPoNi</image>
            <image orderby="2">http://d3nevzfk7ii3be.cloudfront.net/igi/IEtebJJTcuQxieJI</image>
         </images>
      </step>
      <step number="13" title="">
         <lines>
            <line bullet="icon_note" level="0">If you have the original version of the MacBook Air (A1237), refer to picture 1. Remove the following screws securing the heat sink to the logic board:
               <text_raw>If you have the original version of the MacBook Air (A1237), refer to picture 1. Remove the following screws securing the heat sink to the logic board:</text_raw>
            </line>
            <line bullet="red" level="1">One 5.9 mm Phillips screw.
               <text_raw>One 5.9 mm Phillips screw.</text_raw>
            </line>
            <line bullet="orange" level="1">Two 1.9 mm Phillips screws.
               <text_raw>Two 1.9 mm Phillips screws.</text_raw>
            </line>
            <line bullet="yellow" level="1">One 1.9 mm Phillips screw.
               <text_raw>One 1.9 mm Phillips screw.</text_raw>
            </line>
            <line bullet="icon_note" level="0">If you have the A1304 version of MacBook Air, refer to picture 2. Remove the following screws securing the heat sink to the logic board:
               <text_raw>If you have the A1304 version of MacBook Air, refer to picture 2. Remove the following screws securing the heat sink to the logic board:</text_raw>
            </line>
            <line bullet="red" level="1">One 5.0 mm Phillips screw
               <text_raw>One 5.0 mm Phillips screw</text_raw>
            </line>
            <line bullet="orange" level="1">Five 1.9 mm Philips screws.
               <text_raw>Five 1.9 mm Philips screws.</text_raw>
            </line>
            <line bullet="yellow" level="1">One 2.5 mm Phillips screw.
               <text_raw>One 2.5 mm Phillips screw.</text_raw>
            </line>
         </lines>
         <images>
            <image orderby="1">http://d3nevzfk7ii3be.cloudfront.net/igi/4RMjwVdT5xkiR5EL</image>
            <image orderby="2">http://d3nevzfk7ii3be.cloudfront.net/igi/dyVYKtjuJaKyYDpk</image>
         </images>
      </step>
      <step number="14" title="">
         <lines>
            <line bullet="black" level="0">Lift the processor clamp off the heat sink.
               <text_raw>Lift the processor clamp off the heat sink.</text_raw>
            </line>
         </lines>
         <images>
            <image orderby="1">http://d3nevzfk7ii3be.cloudfront.net/igi/GkgQJnLBFEeBBsrD</image>
         </images>
      </step>
      <step number="15" title="">
         <lines>
            <line bullet="black" level="0">Deroute the microphone cable away from the channel in the fan.
               <text_raw>Deroute the microphone cable away from the channel in the fan.</text_raw>
            </line>
         </lines>
         <images>
            <image orderby="1">http://d3nevzfk7ii3be.cloudfront.net/igi/hLAqkMTZQRnhKqkB</image>
         </images>
      </step>
      <step number="16" title="">
         <lines>
            <line bullet="black" level="0">Lift the heat sink up off the logic board.
               <text_raw>Lift the heat sink up off the logic board.</text_raw>
            </line>
            <line bullet="icon_note" level="0">Be mindful of the microphone cable when lifting the heat sink, as it can get tangled on the top edge of the fan.
               <text_raw>Be mindful of the microphone cable when lifting the heat sink, as it can get tangled on the top edge of the fan.</text_raw>
            </line>
            <line bullet="icon_caution" level="0">When you mount the heat sink back onto the logic board, be sure to apply a new layer of thermal paste. We have a &lt;a href=&quot;/Guide/Applying+Thermal+Paste/744/1&quot;&gt;guide&lt;/a&gt; that makes replacing the thermal paste easy.
               <text_raw>When you mount the heat sink back onto the logic board, be sure to apply a new layer of thermal paste. We have a [guide|744|guide] that makes replacing the thermal paste easy.</text_raw>
            </line>
         </lines>
         <images>
            <image orderby="1">http://d3nevzfk7ii3be.cloudfront.net/igi/X6REqZyPyUAn4P1v</image>
         </images>
      </step>
      <step number="17" title="">
         <lines>
            <line bullet="icon_note" level="0">If you have the A1304 version of MacBook Air, the fan is a separate component. The following steps therefore do not apply to your model. Simply detach the microphone cable from where it is adhered to the fan, and lift the fan out from the machine at this point.
               <text_raw>If you have the A1304 version of MacBook Air, the fan is a separate component. The following steps therefore do not apply to your model. Simply detach the microphone cable from where it is adhered to the fan, and lift the fan out from the machine at this point.</text_raw>
            </line>
            <line bullet="red" level="0">Remove the four 2.5 mm Phillips screws securing the fan to the heat sink assembly.
               <text_raw>Remove the four 2.5 mm Phillips screws securing the fan to the heat sink assembly.</text_raw>
            </line>
         </lines>
         <images>
            <image orderby="1">http://d3nevzfk7ii3be.cloudfront.net/igi/RWaloP6ePnHQXRbx</image>
         </images>
      </step>
      <step number="18" title="">
         <lines>
            <line bullet="black" level="0">Lift the heat sink assembly up off the fan.
               <text_raw>Lift the heat sink assembly up off the fan.</text_raw>
            </line>
         </lines>
         <images>
            <image orderby="1">http://d3nevzfk7ii3be.cloudfront.net/igi/xgtD2Jb4TdDwJEPx</image>
         </images>
      </step>
      <step number="19" title="">
         <lines>
            <line bullet="black" level="0">Lift the cosmetic fan bracket out of the fan.
               <text_raw>Lift the cosmetic fan bracket out of the fan.</text_raw>
            </line>
            <line bullet="black" level="0">Fan remains.
               <text_raw>Fan remains.</text_raw>
            </line>
         </lines>
         <images>
            <image orderby="1">http://d3nevzfk7ii3be.cloudfront.net/igi/iEPBOuPFjiqOFDnS</image>
         </images>
      </step>
   </steps>
   <conclusion><p>To reassemble your device, follow these instructions in reverse order.</p></conclusion>
</procedure>

