noise when heater is on!

when the a/c or heater is on and the climate control is on either upper vents on lower vents on lower vent and defrost or on defrost it makes a ticking noise anyone ever had this it doesnt make any noise if its on upper and lower vents together / / sounds like something is stuff or something???

ive heard it before, im pretty sure its the fan bearings wearing out

i think you would prolly have to get a new one i actually might have a spare but i think that one is worn out too

mike

noise is independent of fan speed?

I had leaves in mine before, made a tickity tick tick noise

^^ yeah soo how do u get rid of that noise. .