Traveling on the Oregon coast where it is cold and damp. Have noticed a buzzing sound coming from underneath in the bedroom floor area. Thought at first it was due to a combination of cold and moistur...
Try unplugging the power cord and replugging it back it OR turn the power off at the post and turn it back on and see if the sound goes away. My transfer switch made a buzzing sound and unplugging it and replugging it made it go away. Ah- make sure that most of your appliances and electronics are turned off first.