AC Humming/Whining

[ericmpena]

Hey guys,

My AC starting making a high pitched humming/whining noise when turned on past the 2nd or 3rd level. The pitch goes higher if I turn the AC higher.

I first noticed the noise right after it sounded like something was stuck in the vent. I turned the AC to max and heard something like a leaf or paper moving around and then is stopped, but now I hear humming/whining.

Is there any way I can check to see if something is stuck inside the AC vents? Or should I be looking at the cabin air filter?

I'm out of warranty and Subaru wants $120 just to look into it. I figure I'll try to fix it myself or just deal with it.

[humfrz]

I'd suggest you first look at the cabin filter ...... then into the vents, as far as you can see/reach.

Maybe run it on full with the filter removed for a spell ..... maybe it will blow something out ..


humfrz

[Packofcrows]

Is ac low?

Speaking of ac, every time it kicks in higher, is there a chirp or click coming from the front of engine? If so, tighten the pulley. Worked on mine. Also had to losen belt.