No heat winder. Completed diagnostic. Thermostat just needed to be reset. Reset thermostat. System turned off and came back on appropriately. Checked system. Air flow is good coil is clean. Blower wheel is slightly dirty. System has no back up water safety or air purification. Recommend inline float switch to protect system and home from water damage. As wel as electro static filter and UV light system to better filter air and kill any bacteria and viruses in air to keep system clean and residents healthy. Outdoor unit running good. Recommend hard start kit to assist compressor with start up which will extend life of compressor and lower energy bills.