Performed Platinum Comfort Club Membership Tune-Up on Cooling System 2018 comfortmaker furnace combo with a 1975 Lennox a/c using a 16x25x1 filter. Technician here in January addressed leak issue fixing pvc work, already extreme rusting through furnace however condensate pump is operational and no sign of active leaking at this time. Ensured clear drains, pump, collection box and inducer. Overall system is operating best it can, however a/c is on very borrowed time, coupled with prior leak issues most likely deteriorating life span of newer furnace. Customer would like a comfort advisor consultation about their options.