Fan goes crazy when PS3 is turned on

Please help me, i teardowned a ps3 yesterday to clean it from dust, i didnt touched/destroyed anything. Inside the PS3 i just used a brush to remove the dust, then when i turned it on. The fan went into a overdrive, going all crazy, then after like 10 seconds it shutsdown.

And it keep repeating itself all the time, its a CECHL004

i have tried to replace the fan with another one, same problem occured, i replaced the PSU (power supply unit)

cause i tought it got to much voltage and the fan tried to keep up?

i changed it all back, but it still goes crazy please help me, i really want to fix this problem :(