Geeetech

Hi Chris,

I just short-circuited my fan, I was trying to understand the direction of rotation and I ended up touching where I shouldn't.
The fan still works, I plugged it into the extruder fan plug and it was all right.

Would you have any idea how I can fix this? I just saw that it could be the mosfet, so I'll see if it's burned or not.

If so, is it just a change?

Thanks

Hi.


Replacing a defective transistor should solve the fault.

Thanks _kaktus_ !

Do you know where I can find this?
Or if I can use a different version?

Just found sites that sell a minimum of 500 per order

Look on ebay or from your local electronics supplier. At large wholesalers you will be able to buy large quantities.
I found 10 pieces for $4. (eBay)
AP2304AGN NPN 30V 2.5A 117mΩ ENHANCEMENT MOSFETs SOT23 APE

In aliexpress there are even 1 piece to buy. ($0,11) Paid shipping.

Hi, sorry there was not so much time in the past to look into this forum. Maybe it can help with buying an alternative MOSFET:

To solve my fan problems i already tried to change the MOSFET Q2 (but that wasn´t my problem ). Because the original AP2306AGN is difficult to buy i took a IRLML6344TRPBF which works very well (nearly same specs like the AP2306AGN). There is not much space to re-solder the Q2....i used tweezers and a thin soldering tip.