A loud laptop fan can be caused by dust buildup, worn-out bearings, or loose connections. Before attempting any repairs, turn off your laptop and unplug it from the power source. Use compressed air to gently blow out any debris from the fans and heat vents.
If the issue persists, you may need to disassemble your laptop. Be cautious when handling internal components, as static electricity can damage them. Inspect the fan motor and bearings for wear or damage. If they're damaged, it may be more cost-effective to replace the entire fan assembly.
For a temporary fix, apply a small amount of clear nail polish or duct tape to the bearing area. This will help hold things together until you can get it properly repaired. Alternatively, you can try applying glue to the bearing area, but be careful not to overdo it, as this can attract more dust and make the problem worse.
It's worth noting that using adhesive to fix a laptop fan is not a long-term solution and may void your warranty. If your laptop is still under warranty, it's best to contact the manufacturer or a authorized repair center for assistance.
To prevent future issues, regular maintenance is key. Clean out dust from your laptop's fans and heat vents every few months, and consider using a can of compressed air specifically designed for electronics.