06/03/2025- I arrived on site to find the core sense tripped, after resetting the core sense the unit came on without issue. However since this is a reoccurring issue I checked all possible causes for this intermittent tripping. I found the return duct heavily bent right at the return grill due to the location of the air handler and the tight attic. I positioned the duct the best I could to allow optimal airflow as well as changed the dirty air filter with one on location. I found the condenser coil to be fairly dirty as well, I have cleaned the condenser coil as well. Lastly I found the unit overcharged with refrigerant which lead to a 12-16 degree subcool. After pulling out 1 lb of 410a from the unit the subcool stabilized at 7-8 degrees, I then verified the temperature split of the unit which held at 19-20 degrees. I believe that the airflow issue’s compounded the fact that the unit was overcharged with refrigerant, leading to the intermittent tripping on the core sense. However I h