Hardware Switch overheats as fan does not spin, but the fan works in another Switch

[SeanKennedy]

I have a Nintendo Switch that is overheating, and I cannot figure out what the problem is. I have changed the fan with a replacement one, but the fan will still not spin, so I got hold of my son’s working Switch and tried the original fan and the new one in it and they work just fine. So, I decided to totally strip out the mouther board give It clean with IPA and put all the ribbon cables back in case one was knocked loose. The switch is now back together and Woking as before but the fan still does not work and the Switch overheats. Has anyone got any ideas to help me out, any help would be much appreciated,

Best

Sean

 

[SeanKennedy]

SOLVED.
I was told it may be a diode problem I had a look on YouTube about the Switch and diodes and found a film to locate the diode, followed his instructions and removed it I didn’t even have to heat it up, it came off with tweezers. Now the fan spins as normal and all is good.

Best
Sean

 

[jkyoho]

Was it HAC-CPU-21 board?

 

[SeanKennedy]

Was it HAC-CPU-21 board?

Not sure without taking I apart again.