Lennox Ac repair - system not cooling Upon arrival - discovered outdoor unit was clogged Examined filter - filter is concaving and full or particles causing low airflow, combined with a dirty condensing coil. This was what was causing the system to not cooling Upon arrival. Discussed options with customer and perform routine maintenance to bring to unit back into working condition. See photos. Discussed comfort club - customer would like to join the comfort club for furnace and A/c