08-19-2016 08:17 AM
Welcome to the Lenovo Community !
Sorry to hear of your problem. Is the fan not spinning at all or is the fan spinning, but the laptop feels warmer?
If the fan isn't spinning at all then it most likely needs to be replaced. If the system is still under warranty then I would recommend that you contact Lenovo Support for warranty assistance. If the system is no longer under warranty then you can have a local computer repair service replace the fan or do it yourself if you are comfortable working inside your laptop. Your model's Hardware Maintenance Manual will explain how to dis-assemble the laptop for the fan replacement.
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Hardware Maintenance Manual:
If the fan is spinning, but not cooling the laptop then try cleaning the fan and heat sink assembly. Given the time the laptop has been in service these items mostly like are filled with dust which is reducing the laptop's cooling efficiency. Cans of compressed air can be purchased at any electronics store. Just use short bursts of air in each of the laptop's air vents several times or until you no longer see dust being blown out. Avoid long blasts of air as this may damage the fan.