How To Fix Fan Errors In Lenovo Laptops


Oct 7, 2009
Best answers

Lenovo is known to be a go-to brand when it comes to building reliable and well-priced laptops. They seem to have pretty much every segment of the market covered with their laptops. Sometimes you can come across a number of issues. Some complex others being simple. This tutorial will show you how to fix fan errors on your Lenovo laptop.

1. If you can boot into your laptop, you might want to touch the top side (on the keyboard) and the bottom to feel for any hot spots where the processor might be residing. You can locate the processor by looking for the exhaust vents for the laptop. The processor shouldn’t be far from it.

2. Use a temperature monitoring app like HWMonitor or HWiNFO or Speefan or Realtemp and see what your temps are. You should be in the mid 30°C’s (depending on your room’s ambient air temps) at idle after booting into GUI.

3. If you can see and hear the fan rotating/spinning but the apps as well as the screen at startup say that you have a fan error, you will need to perform a BIOS update. You will need to visit Lenovo’s support site with respect to your model number and see if you have any BIOS updates pending.

4. If you can or can’t hear the fan spinning(without any airflow from the vents) but the laptop is gradually heating up after booting into GUI, then your cooling solution is failing.

5. You will need to disassemble the laptop and inspect the fan and the cooling fins stack if there have been clogged with dirt/debris and/or hair follicles. If they are indeed clogged use a small soft bristled painters brush to dislodge the debris from the fins stack and the fan.

6. If the cooling assembly is clean and the fan doesn’t move, then the fan has given up the ghost. You will need to replace it with a similar/matching replacement part from Ebay or Aliexpress.

7. While mounting the cooling assembly back on, you will need to replace the thermal paste after removing the previously (factory) applied thermal paste with isopropyl alcohol. You can use nail polish remover in place of rubbing alcohol. You can use Arctic Silver 5 or Arctic’s MX-4 thermal paste.

8. If the fan error yet comes up, you will need to power cycle your laptop. Disconnect from the AC power and remove the laptop’s battery. Hold down the power button for 30 seconds and replace the battery and reconnect to the AC adapter and power up.

9. If your Lenovo laptop has an internally mounted battery, you should find a reset hole at the underside of the laptop. While disconnected from the AC power adapter, use a straightened paper clip to press down and hold the button for at least 30 seconds. Release and then power up the laptop.

Hopefully you’ve rid yourself and the laptop of the fan error message and will now be able to move forward with your chores on your Lenovo laptop.
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