Oke, thanks a lot for the quick help! I ordered 3 chips (for future mishaps ;p), some fine solder and a flux pen, so lets hope my first SMD adventure goes well. I will report back if the replacement was successful, or not..

What is the exact part number of the ATSAM4E8E chip, or which one should I buy from the link below?

http://www.microchipdirect.com/ProductDetails.aspx?Category=ATSAM4E8E

I would like to try to replace the 8 dollar chip, before ordering a new 180 dollar board..

Yes, not super hot, but it's definitely getting hot. If that means the chip is toast, I will probably have to order a new board, since I won't be able to replace the chip myself I think.

Oh and on my other printer, the led next to the usb port keeps lid, and on the broken printer it goes out after 0.5 sec when switching on the machine.

Thank you for the quick reply. Both the bed and the extruder heater LED do not light up, when I try to heat them up.

I just noticed that when I do Not connect the thermistors to the board, they both read around 40 degrees, at the web interface. When I plug them in, the value doesn't change. I don't think 40 degrees is the correct value, when there is nothing plugged in. So the board probably is not reading the thermistors but some other component of the board?

I am running a Duet Wifi, with the latest firmware

Some time ago, I accidentally created a short between the bed power wires and the bed thermistor. After that my bed heater and hotend stopped working, the VSSA fuse, labeled F1 was blown. I replaced it this morning and also installed a new bed probe (NPN NO inductive probe). Everything is working, motors, hotend fan, auto calibration, web interface etc, but there still is a problem with the heaters.

The web interface shows a temperature around 40 degrees for the bed and the hotend, a bit high but not completely abnormal. I measured the resistance of the thermistors and they are both around 100kOhm. I measured the VSSA fuse and it seems fine, no open circuit.

The problem I'm having is that both the bed and the hotend are not heating up. After a couple seconds I get the error, heater heating up much more slowly than expected.

After checking, the heaters are just not getting power from the board.

Is there another fuse that I'm missing? Or could something else be messed up after the short, blown trace and how would I check that?

I really hope someone can help me out, I need this printer for production, so it's really frustrating that it has been down for so many days.

Thanks