Properly Performed a whole home system inspection. Replaced the filter, checked blower wheels for built up dirt/dust, cleaned flame sensors, cleared inducer ports, tested hot surface igniters, took delta Ts, tested safety switch, tested all electrical components, tightened all electrical connections, took running volts/amps, monitored systems operations. The ductwork and air filter are really dirty, the blower wheels are dirty, the outdoor unit capacitor is weak, fungus growth in supply Plenum. AC mode the compressor is not starting rapidly. It takes a long time to ramp up so a booster will be needed to help with the compressor.