My heat and a/c has been spazzing out a bit for the last year or so. The a/c doesn't feel particularly cool, and sometimes won't switch over to heat. Vents were working fine this morning, then when I left work, and turned on the a/c...nothing, nada. No air blows out whatsoever (except for the slight bit that comes through when travelling at faster speeds). Is this a fuse? Please help

 

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