HVAC fan

BigDanT

New Member
Between driving this morning and this afternoon, my fan speed knob does not work. If I turn the knob to 'off' it shuts off but when I turn it clockwise to the lowest fan setting, it comes on full blast and stays the same speed as you turn it all the way up. Is this a blown fuse or is there an attenuator somewhere that is shot?
 
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