Went for a maintenance call today. When going to furnace, tested for static pressure. Static was passing for manufacture specifications. Did a CO test. No carbon monoxide was detected when testing. Checked heat exchanger no wear and tear for heat exchanger. Cleaned out drain line, pressure switch hose, and flame sensor. All electrical components are passing for manufacture specifications. Humidifier water panel is good. No further wear and tear. Renewed membership with customer. Thank you for choosing LBA services-Johann.