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What's DOS?
Posts: 2
Registered: ‎09-28-2019
Location: US
Views: 400
Message 1 of 3

M910z All in One error message 0135



I saw a post from a long time ago about an error message: Error 0135 System Fan Failure.


The response was to reset the BIOS (which did not work) the person said they unplugged the fan and re plugged in and that worked.


Is this still accurate, I am getting this error message and before I try wanted to check in.


Also, what is the easiest way to get to the fan to unplug and plug it back in?


thank you,




Support Specialist
Posts: 427
Registered: ‎11-04-2019
Location: PH
Views: 231
Message 2 of 3

Re: M910z All in One error message 0135

hi @willg1


Welcome to Community Forums!


There may be various reasons behind the occurrence of this error includes, fan failure, the fan stopped working, CPU fan is not working correctly and so on. 


Solutions to Fix Lenovo Error Code 0135: Fan failure:


Solution 1:- Reset the BIOS ( It may have not worked with others but it may work for you )

You should try to reset the BIOS and check if the issue persists. Below are the steps to do the task for the same.

  • To access the BIOS menu, press “F1” key, until the Lenovo logo appears on the screen while the computer is turned ON.
  • Then to reset the BIOS to its defaults please click on “F9” Key and select YES.
  • Now click on “F10” Key to save the changes that are done in the BIOS, the computer should automatically restart.

Now check if the issue persists, then move to the solution.


Solution 2:- Disconnected and Reconnected the CPU Fan Cable

Connect the CPU FAN: The fan on the processor cooler you install earlier will also need to be connected to the motherboard. Due to the CPU fan cable failure or stopped, your motherboard gives an error or the processor rapidly overheating and automatically shutting down the system. Much like the case fans or the processor’s fan speed is controlled by the motherboard.


Then you need a check to make sure that fans, it’s connected to the motherboard properly. If it’s not, then you should need to disconnect the CPU fan cable, and then reconnect it.

After then connecting the CPU fan to a connector labeled ‘CPU_FAN’ on the motherboard, typically located right next to the processor socket. Like the other connections, it will only plug in one way. This will either be a four-pin or three-pin connector.


Solution 3:-Restart Your Computer

  • Go to your Lenovo computer, and then click on “Start” on the bottom-left corner of the screen or press ‘win’ key on the keyboard.
  • After clicking on “Start” button, find and click the right arrow next to the “Shut down” button.
  • Then right arrow, choose “Restart”, from the menu that appears.


Let us know how it goes 




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What's DOS?
Posts: 2
Registered: ‎09-28-2019
Location: US
Views: 167
Message 3 of 3

Re: M910z All in One error message 0135



I wanted to let everyone know that the issue with the fan error message was resolved.  


It actually ended up being due to a screw pressing against the fan housing.


I mounted the monitor on a arm on the desk.  The plate that attaches to the back has 4 screws that hold it.


Three of the screws tightened just fine.  The top right screw actaully lined up with the fan housing and when i tightened the screw it pushed the housing in and either stopped or severly slowed the fan down.


We opened up the computer and bent the fan housing flat again.


Re assembled and mounted with spacers on the screws so they did not go so far in.


now it is working fine with no error message.



thank you,




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