Thanks to the people having post a fix to that issue. My electrolux dryer was stuck with error code EH0 since a while after having worked randomly for the last few months. I was near to purchase a new one… but I found this thread. So I disassembled the dryer to access to the power board (not that hard), unplugged the power board wires (after having took a photo to be sure to plug them correctly afterward) and checked for the solders behind the “omron” relay. And indeed they seemed a bit crackled. So I solder them again, plugged everything and tada… ! Victory ! !! The dryer is working (we’ll see for how long…). Anyway, ~400€ saved :D. Thanks again guys.