Performed level 2 furnace cleaning. Flame sensor and burners are clean. Heat exchanger looks good. Combustion analysis test was normal. No CO detected in the airstream. Upgraded customer to a package cleaning and performed the service work on the AC. Paid. No leaks detected at the indoor coil. Electrical components tested good. Condenser coil is clean. Refrigerant charge was good. HVAC system is operating normal at this time.