Hi! I just finished to put together my k8028 dimmer. When i start it, first it wont check if all led are working and when i start to select functions then ld2 wont turn on no matter what function i select and there seems to be less functions available then 13. All soldering have checked and looks good, all parts placement also is exactly as it needs to be. I have connected it just for testing with 3.1w dimmable gu10 led.