No heat, thermostat was burnt. No power to thermostat from air handler. There was a short at the air handler contactor and low voltage wire was connected to the top of the contactor, sending 120volts to the thermostat. Replaced contactor and thermostat. Heat worked as emergency heat. Turned heat ON. Outside heat pump works but not the compressor. Inspected heat pump, and it was wired as straight ac, not heat pump. I turned cool ON, at the thermostat, to checke the pressures, but compressor didn’t work, only the fan. Checked capacitor and it’s in range (reading 35 on a 35 microfarad). Will need to re wire the entire outside system, as a heat pump to do a full diagnostic and troubleshooting the compressor and the entire system. Other company installed this system (2023) and they didn’t wire as heat pump outside, consequently, house is using emergency heat only , to heat the house, and ac is not cooling due to compressor not working. Customer will contact company that installed the system