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Fan wiring

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Hot end sprung a leak. When reassembling I noticed that the blue and purple wires had come out of the fan connection plug at the top of the hot end assembly.

Could someone kindly tell me what the blue wire should connect to. To the red wire of the fan lead, or to the black wire of the fan lead?

Thanks in advance.


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Sorry, I didn't explain myself properly.

The blue and purple wires have become detached from the plug.

The two parts of the plugs are still together.

The red and black wires are attached to one side, and on the other side no wires are connected.

I need to resolder the blue and purple wires to the plug and I don't know whether to line the blue wire up with the red wire or with the black wire.



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