FAN flow corrosion.
Int. print.
470k, 6k8, 4k3 (4k7 II 51k) SMD are  open. 
Used the new silicone paste for PFC and output voltage side PS

Wile test green and red LEDs flash shortly 10-20s
after this green stay on. Tested on real 230VAC after safe testing 
with isolated 230VAC input.