Arrived to home Checked system Found no 24V going to condenser Went into attic Found Bosch condenser connected to 2005 Carrier coil with 76 piston (should be TXV) No surge protectors in place Overflow pan with standing water No clean out for drain No float switch Reset system Came back on line Temp split fluctuating (due to lack of TXV) Spoke with Ron regarding concerns of system