Completed heating maintenance on 1 system in Gainesville Georgia . Checked the safety and performance of the heating operation. Checked the heating integrity. Checked heating amps . Checked the water panel. Changed air filter . System is heating normal at this time. •Would recommend the HVAC equipment have a UV light on the Evap coil to prevent air flow restriction and prevent biological growth from growing in the equipment. The coil now is already starting to get particle and debris on the air coil . Took video . •Will let Jeff know about the banging pipes with the plumbing.