Why I started to hear humming noise when I turn on the Aprilaire Air Cleaner model 5000? The technician from Sears helped me to replace the filter in December 2011, but shortly after that, I start to hear this annoying noise and worry about the possible health risk it prsents to my family.
Does this electric humming/hissing really matter to human health? If so, whom should I contact?
Under normal operation there is electricity passing through the door of the model 5000 into the cabinet just like a plug into an outlet. This can sometimes be audible but it does not pose any health risks.
If you are feeling that the noise is coming from the HVAC equipment call your HVAC specialist and have them give us a call when they are looking over the equipment.