how to repair solar inverter no output fault||repair restarting fault||yt-30

welcome to My TH-cam channel
i am repairing a 12v solar inverter which has no Ac output.when i turn on this solar inverter there is no output and it quickly turn off.
faulty components
1) one cooling fan
2) two MOSFETs svf 740
tools used
1)soldering iron70watts
2)solder wire
3) desoldering sucker pump
4) Philip screw driver
5) air blower for cleaning
6) thinner for pcb cleaning
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[@happylife2984]

Bhai mera on hi nae hota betry py. Our wapda py load dy raha hai

[@powerpointelectrical5424]

Switch on off kar k check karen

[@happylife2984]

@@powerpointelectrical5424 sir betry py on ho jata hai lkn 2 3 second screen py 0 volt brtry our 0 volt out put py show karta hai our off ho jata hai. Chery ka inverter ups hai