Water furnace carrier geothermal split system cooling system maintenance, tune up, cleaning, filter rotation, winter shutdown Shut down humidifier for summer, replace 20x25x4 Filtrete filter already on site, flush cooling system drain, perform diagnostic scan on water furnace 1x E8 over or under voltage power supply issue. No other active or stored service code since the last service. Non pressurized flow center two pump running in good condition All equipment is clean safe and ready for summer Vision pro 8000 Wi-Fi. Functioning good, no batteries, no homeowner concerns.