Ac repair: filter is caked with dirt and dust, reducing air flow to the point of freezing the evaporator coil. Tested with filter out of system and pressures and temperatures split are in range with a 20 degree temperature split. Recommend opening coil box and Performing evaporator coil cleaning to remove any dust and dirt off the coil to allow the best airflow through the system. Also recommend signing up for the comfort Club membership for twice-annual inspections on system and components. Drain line was clear and draining normally at this time.