Switch Oled fan will go on full when switch is turned off when powered on fans act normal

Hi All,

Hope somebody ca help me i have modded my Oled switches but now with one i have a strange issue i cant figure out and need some help.
When the Switch is off de fan will spin full but when i switch it on de fan works like normal also de switch is working fine and charges normal.
i cant locate where this is comming from took the chip out made all original but still same thing.

some help would be great.