My LG direct drive LGF7774ST dishwasher stopped in between a cycle with a burning smell coming from the control board. When opened up the control board was burnt. I attach the pictures of the burnt board. I can replace the board but first want to understand what has caused it to blow up.
Would appreciate advice on this. IS it worth changing the board or replace the dish washer?
Also i wasnt able to find a schematic for the circuit board.

Thanks,
Suman

 

Looks like a Relay that's melted the wiring as well due to over current,
what's in a dishwasher,, pump, motor, water feed solenoid, heater,,??

 

My LG direct drive LGF7774ST dishwasher stopped in between a cycle with a burning smell coming from the control board. When opened up the control board was burnt. I attach the pictures of the burnt board. I can replace the board but first want to understand what has caused it to blow up.
Would appreciate advice on this. IS it worth changing the board or replace the dish washer?
Also i wasnt able to find a schematic for the circuit board.

Thanks,
Suman

 

Hi Suman, my board did the same thing. The wires coming off the relaye for the heater burned the wires. Did you simply replace the board or did you do something else. Any help would be great. Tom