Blower setting 4 not working

Blower setting 1,2 and 3 all works on a 197 FF, but this morning number 4 stopped all together.

Any ideas or similar occurrences?

Will

Edit. I've just searched and seen it's a wire melting problem. Mods can delete thread :smile:
 
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Will leave it open as the link from CallorFold will be useful should anyone stumble across this thread before any others :smile: