Dear all good day to you. Today It seems i managed to cook the MOSFET controlling my part cooling fan through fault of my own. The LED stays on permanently and the FAN is always on irrespective of the command I send. I wanted to ask how, within the Marlin firmware, I am able to set the part cooling fan to output via E1, as this is spare on my board. My board is a MKS BASE 1.4 with picture attached for reference. Otherwise, based on the above information, would desouldering the MOSFET and soldering a fresh on cure my problem? Many many thanks for your help https://reprap.org/forum/read.php?13,800979,800979#msg-800979 Fri, 11 Sep 2026 22:34:53 -0400 Phorum 5.2.23 https://reprap.org/forum/read.php?13,800979,800982#msg-800982 https://reprap.org/forum/read.php?13,800979,800982#msg-800982 Roberts_Clif Controllers Fri, 15 Dec 2017 20:07:07 -0500 https://reprap.org/forum/read.php?13,800979,800979#msg-800979 https://reprap.org/forum/read.php?13,800979,800979#msg-800979
Today It seems i managed to cook the MOSFET controlling my part cooling fan through fault of my own.

The LED stays on permanently and the FAN is always on irrespective of the command I send.

I wanted to ask how, within the Marlin firmware, I am able to set the part cooling fan to output via E1, as this is spare on my board.

My board is a MKS BASE 1.4 with picture attached for reference.

Otherwise, based on the above information, would desouldering the MOSFET and soldering a fresh on cure my problem?

Many many thanks for your help]]> Min1291 Controllers Fri, 15 Dec 2017 19:06:03 -0500