(8-14-23)During my evaluation today, I found the unit indoor and out to be covered in ice. I gave the customer the option to deice the coil today or return at a later date once the ice has melted off. The customer chose to return at a later date. The office needs to call him and get him back on the schedule. (8-16-23) During my inspection today when I came out, the coil was completely thawed out. I did not find any leaks on the system. I did end up finding the TTXV sensing bulb was not insulated anymore. I gave the customer the option to insulate the bulb and he went with it. After doing so I noticed that the filter was causing a restriction in the airflow. It was clean, but too dense of a filter. I told the customer he needs to get a less dense filter. At this time the system is performing well, and does not freezing up.