Heating and cooling maintenance. Checked all tires. Checked indoor unit. Checked inducer motor clear port. Checked igniter. Checked flame sensor and cleaned. Checked blower motor and its wheel. Check temperature split. Checked filter and humidifier pad customer takes care of both. Checked outdoor unit. Checked refrigerant levels. Checked fan. Checked compressor. Checked capacitor. Checked contactor. Checked coils and cleaned. Recommended extensive coil clean and membership. Made system ran before leaving