I have a 93 Prelude. A couple days ago when i put the heat on the front defroster setting something started to make a clicking noise which i believed to be the heater motor the noise stopped that same day but now the front defroster dosn't work but all of the other heating ports work

 

never mind. on the motor that tranfers where the heat gets blown one of the arms was knocked off track. and by using my brillant mechanic skills i noticed this and returned it to its proper place fixing the problem and a mechanic bill