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Introduction

This guide will walk you through the process of replacing the fan in your Lenovo IdeaPad 3-15IML05. Over time, dust or a faulty fan can lead to overheating and system issues. By following these steps, you'll be able to replace the fan y and restore optimal cooling performance to your laptop.

Before you begin this repair, make sure that your laptop is off and disconnected from the power adapter.

What you need

1. Step 1 Lower Case
  Before beginning, discharge the battery below 25%, power the device off, and disconnect all peripherals.
  
  Use a Phillips #1 screwdriver to remove the following screws:
  
  Six 7 mm screws
  
  Four 4 mm screws
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2. Step 2
  Insert an opening pick into the seam between the lower case and chassis.
  
  Slide the pick around the entire perimeter until all of the plastic retaining clips release.
  
  Remove the lower case.
  
  Forcing the back cover open could break the plastic retaining clips.
  
  During reassembly, lay the cover flat and press around the edges to secure it to the plastic clips.
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1. Step 3 Lenovo IdeaPad 3-15IML05 Battery Disconnection
  Use a plastic spudger or your fingernail to gently push the JST battery connector out of its socket.
  
  Pulling directly on the cable could damage the connector.
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1. Step 4 Fan
  Use a Phillips screwdriver to remove the three screws securing the fan to the chassis.
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2. Step 5
  Grip the tab at the end of the bundle cable and pull the connector slowly and steadily out of its socket to disconnect the fan cable.
  
  Be careful that you do not damage the socket on the motherboard when disconnecting the fan cable.
  
  Disconnect the fan from the heat sink.
  
  Gently unhook the black wire from the tabs around the edge of the fan.
  
  Lift the fan from the laptop to remove it.
  
  If there is any resistance, double-check that the screws and connections have been removed
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Conclusion

To reassemble your device, follow the above steps in reverse order.
Take your e-waste to an R2 or e-Stewards certified recycler.
Repair didn’t go as planned? Try some basic troubleshooting or ask our Answers community for help.

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