Anyone ever have to replace the part that controls the climate control temp. Mine appears to be bad or a part associated with it is. I have a buzz that happens when the temp is 72 degrees. Called the local mechanic and he advised to place it on low or really hot and see if the buzzing stops. If it does then its the unit that needs to be replaced. I did that and it stopped so must be something to do with the climate control.

I was then in my brother's 2000 accord and it was doing the exact same thing. Did the test of moving to "Low" temp and it stopped so this must be more common. Anyone have to fix this on your MDX. Mine is a 2008 with 63K on it. It sounds like an actuator going out or something. Thoughts???