We called to have a service by Frymire to check our AC Unit. We have noticed a smell coming out of the vents. It smells like burnt dust (basically the smell when the heater is first turned on during the Fall). We explained this to the technician but he did not look into the problem. The issue has actually gotten worse since the appointment. We are going to call back to hopefully have another technician come out or we will have to switch to another firm.