Delta 4 pin fan not working

I have been attempting to get my Delta FFB0412UHN-SM36 supplied by ratrig to work. I have extended the fan following the pinout for my board (SKRat V1.0) and the fan does not spin. When I remove the PWM wire, or change its location, the fan spins up to 100% with no control. I have verified my connections between the fan, the extension, the extension and the board side JST plug, and everything has continuity. Any ideas?
5 Replies
ItsJesus
ItsJesus14mo ago
Attached is the config file I am currently running
ItsJesus
ItsJesus14mo ago
I recently ordered a box of JST XH connectors, I will attempt to recrimp on Thursday. Otherwise, if anyone has any ideas please let me know.
ItsJesus
ItsJesus14mo ago
updated config file
wolfnacht
wolfnacht14mo ago
Connecting a 4028 fan | RatOS
4028 server fans are becoming a popular option for part cooling because of their light weight and great pressure and flow rates. In this guide we'll go over how to connect one and use it for part cooling. 4-pin fans usually aren't used in 3d printers, and many boards only provide 2-pin ports, but fear not! There's always a way.
wolfnacht
wolfnacht14mo ago
Following the pinout for the skrat
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