Install the door lock/switch assembly with the door switch harness disconnected but "jumped". Jump a wire between the wire harness terminals and if the error code (E41) stops appearing when the machine is started, the door lock/switch assembly is indeed faulty and needs to be replaced.
Check the continuity of the door switch harness connecting the switch and terminal
J2 of of the control board if the error code (E41) still appears every time the machine is started after putting a jumper wire between the door switch harness terminals.
Make sure the connectors are clean and snugly connected to both. Replace the wire harness if you are skeptical about its condition. Disconnecting the door switch wire harness (J2) from the control board and putting a jumper wire between the leads of terminal
J2 on the control board will directly confirm the condition of the wire harness and the board itself. The wire harness is the problem and must be replaced if the error code E41 stops appearing. On the other hand, consider replacing the control board if the error code still flashes even when the leads of terminal
J2 on the board is shorted ("jumped").
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