Notes: customer keeps thermostat at 77° and changes the filter roughly every 3 months. Occasionally notices a smell when the unit runs. Customer has a $39 coupon for today’s tuneup. Membership is also due for renewal. Summary: the blower wheel has debris build up. I suggest a pull and clean on the blower assembly to improve efficiency. This may also help with the smells. A long term option is to have an oxidizer to control the odor. I also recommend surge protection to help prevent a major surge of power from damaging the equipment.