Today we performed a commercial maintenance on all twelve of your systems (7 Tranes, 1 Lennox, and 4 Goodman’s) . We changed all filters (5-12X12X1, 2-20X25X1, 2-20X20X1, 1-18X24X1, and 1-12X20X1) cleared and treated all primary drain lines and drain pans, and checked amperages on all systems. Everything is working properly at this time. Thank you for your business. Thomasville Ga Today (9-28-21) we performed a summer tune up on the American Standard heat pump unit. We replaced the 20X30X5 filter, cleared and treated the primary drain line and drain pan, and checked the amperages on the condenser and indoor unit. Everything is working properly at this time. Thank you for your business.