Came out for a noise concern. Ran the system and sound never reproduced itself. Customer showed me a video of compressor making a loud noise. Gauged up to the system appears to be low on refrigerant but the is also not enough air at the return for the upflow furnace. The return sounds like a jet indicating there is not enough return airflow. Can't really determine if the system charge is accurate until the airflow issue is addressed. Customers concern is why was this not addressed when she was sold the system which is 10 months old or less. I'm turning this over to Chris to see how he wants to address the issue. Need to get back with this customer by monday.