? door lock
?? any fusible (low name value 10-s of Ω-s) resistors at power paths (thinking about prev. - then it must be) also all power cables/connectors and their PCB welds and PCB traces nearby . . . . . . . . well . . . . . . that only if there is no ohmic connection from near end to the far end of a particular "power ""rail"" mixed set of (line,cable,trace)"
This is a really long shot and relays to a drama with a different machine. Wouldnt come on and no lights, had board after board exchange (under warranty), no luck. very long story short turned out to be the load sensor in the drum was faulty. Chances this is your issue are slim, however i mention it because with these things everything is kind of connected.
Check everything for continuity like door switches etc (power off).