Upon arrival spoke with customer and explained what I would be doing today. Customer explained she had no issues, just wanted system and dryer vent checked out. Started in attic, coil is clean, no refrigerant leaks. Blower is clean. Flame sensor is clean and gas pressures are set to 3.5IWC. Let system run awhile and system is working great. Went and pulled dryer vent out and vent doesn’t have much lint caught up in it due to home only being a year old. Put everything back together and went outside. Outdoor unit is clean. Contacter and capacitor checked out within manufacturing specs. System has pressures on it. Fan and compressor both turn over. System is working great. Spoke to customer about filters, and brought up about the membership for the system. Customer did not want membership at this time said she will call in the spring and will sign up then.