Thread: High pitch noise coming from AC/heating sys.
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Old 10-01-2009, 11:40 AM
winesub winesub is offline
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Join Date: Sep 2009
Location: Toronto
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High pitch noise coming from AC/heating sys.
Hi M.B. DOC. Thanks for your reply. I tried pressing the buttons as suggested, but the noise is still there. Only if the air is removed from the foot vents, would the noise disappear.

What exactly is the 'vacuum element for fresh air intake'? Maybe I can have a look at that.
Thanks again.
RA



Quote:
Originally Posted by M.B.DOC View Post
Most likely the a/c vacuum element for fresh air intake.

Try pressing the auto button & then at EC button. If the noise goes away with EC light on then the fresh air element is the problem.
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