well, you can reprogram a board for an f09 fault
but
considering it is an indesit, and it is a washer dryer , and it has gone pop, then it will more than likely need a new board
and heres the good news
depending on serial number, it will need a wiring change
it will need a smart card
and youll need an adaptor to program it
around £120 will do it
then you just got to hope that nothing on the machine has done the damage, cos your new one will blow too
dont be shocked if its been dripping from the heater/fan joint
emw could supply you a good board at a good price, you just need to tread carefully
hope this helps