In Sun City Arizona on a scheduled maintenance with a 2010 Lennox split heat pump. I checked indoor temperatures, indoor airflow, amp draw‘s of motors and tested capacitors, rinsed and flushed drain pan and drain line. Checked refrigerant charge checked amp draw of compressor and outdoor fan motor tested capacitors and tightened all electrical connections. I followed up on a backed up drain from the summer. All is well today. Thank you for choosing Hobaica!