FAN flow corrosion.
Int. print.
Power side: ZD15V (was ok) -2.
470k (was ok), SMD n-p-n for relay, T20A, 2k2, 4148, ZD15V
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.