Induction stove troubleshooting (Make: Butterfly Model: Elite 1800W)

[pr_oil]

The breaker trips as soon as I turn on the stove, so disconnected the two terminals of induction coil from the main PCB. then I can turn on the stove, all light works, fan works, what will be the issue, Coil is good. I double check with another good coil from other stove, same issue.

The voltage in PCB at coil terminals 650V AC (coils disconnected) ,
in other good stove the voltage in PCB at coil terminals 275V AC (coils disconnected).
What will be the issue ?

 

[Ramussons]

Blown IGBTs (fixed on a heat sink). Most probably overheating.

 

[pr_oil]

Yes It was short IGBT. Thanks