Sign 3 comfort control maintenance plan and complete heating maintenance in Alpharetta. Find upstairs 17 year old Trane gas furnace operating with rusted evaporator coil, worn ignition and flame sensor, missing in-line water protection. Find main level 17 year old Trane gas furnace operating with worn ignition and flame sensor, under-fire furnace with high CO level. System dirty and no water protection. Find basement Payne 12 year old Airhandler leaking water due to clogged drain. Clear drain for customer and change filter. System operating at this time. Suggest in-line water protection. Customer want to wait on repairs. All 3 system operating at this time. Give customer estimates.