i have no power to my boiler ?

Hi can any1 help my boiler packed up
It's a old 1 microgenus 23 mffi
complete dead
Got no lights. Showings can't hear nothing no flames
Gas is working fine un kitchen also cheked fuses to glassed clear 2 amp ones in boiler on PCB. Boured and on main. Nothing
House is freezing. I got 3 kids , youngest 1 ,4,5
Bin approved for gt only it could take 3,4 months please
Need 2 no why no lights wot so Eva on boiler. Could it b PCB. 0