Bosch SGS43A52GB/33. Stopped partway through the wash cycle. Heard a bang. No power to PCB. Removed all covers, all looks ok, no leaks seen!. Opend PCB and one of the triacs has blown and also a small strip of printed circuit on the back burner out. A replacement board is @ £90, a repair to the board could cost about £30. Washer was in good condition before this. I would hate to add to landfill but am concerned that this may not cure things and a replacement board may blow! I have checked the heater element is ok. Is replacing the board going to solve the problem. Anything else likely knock out the board? Thanks for the help and advice.