I had the electrician came about 2 year ago who messed up our wiring basically the light bulb directly outside the light bulb blinks all the time therefore we have removed the bulb, now I thought to look into this over a long weekend so please if someone can help me to resolve this issue. What he did to the pull switch wiring Put the BLACK wire in COM, 2 REDS goes into COM2 and BLUE goes into the BLACK Wire which is really short and cant pull it more. YELLOW wire was left outside I have tried to put the YELLOW wire in COM, 2 RED wires in L2 , BLUE & BLACK wire in L1 but it blinks and also left the BLACK wire. I have attached the picture.