Tech Cody arrived to customer's home and met the homeowner. The system was cooling when I arrived, the homeowner informed that before they left out of town there was ice on the lineset at the outdoor unit. When I arrived there was no ice building up, when I hooked up my guages I noticed that the subcool was fluctuating because the TXV was hunting. I added 6oz of refrigerant to see if the metering device would stop hunting but it did not. At the indoor unit the TXV was attached tightly to the suction line inside of the unit, the coil was clean and I conducted a courtesy leak search but did not find a leak. When I tested the airflow of the system I made sure all zones were open and I read a static pressure of 1.0wc. This was double was the max rating was on the data tag. I shared my findings with the homeowner and recommended they talk to comfort advisor for a ductwork engineering assessment, at this time the homeowner also informed me that the front room is always hot in the summer and