Noz heater wiring shorted, spark, probs

Arnold

Panels dead, always on fan off. Fuses ok, no signs of burnt out board components.
Any ideas helpful! It's a WiFi ,
Rob

Arnold

My 5v is gone, plugged in usb and we're back though not ideal

dc42

@Arnold is is a Duet 2 or a Duet 3 Mini wifi?

Are any components on the board getting hot?

It sounds as though the 5V regulator has failed. It's possible to replace it, but not easy.

Arnold

@dc42 Not that i feel. problem now is 24v at vin terminals nut 1.7v at DWC sensor. i fear i may have popped it...

Arnold

@Arnold although all board front and rear traces and components appear fine

Phaedrux

Take a look at this guide and see how far along you can get.