Tech found no difficulties at this time. Office approved billing for renewal. Renewal needs to be paid by Friday @5pm. If not paid maintenance contract will be dropped and first time visit will be required for new plan. Plan can be paid online or check mailed/dropped off at office. Homeowner mentioned smell (dirty sock syndrome) tech informed homeowner we can clean coil but smell could still stay in house and best option to permanently remove smell is investing in a Uv light or plasma air for air purification and to eliminate smell.