black/green wire off the center tap of the igniton switch is warm as he88ll/ extremely warm, everything seems to work ok but the heat off the wire is crazy as in melting the insulation,,try'd chasing the wire back to the fuse box/light switch ,, and can't fine anything wrong or shorted,, any idea's ?

thanks for help/info

 

get a heavier guage wire?

idk im not an electrician