Why is my AC making a pulsating noise?
Is your air conditioning unit making a odd pulsating noise that is loud enough to be heard inside the house? If so, something could be loose, like the coil fan or the fan blade attached to the motor. If these possibilities are excluded as the culprit, it could be that the actual fan motor is failing. The good news is that all of these fixes are somewhat simple and inexpensive. Contact the Experts to make the proper diagnosis.