25OCT2022 Jason B Arrived for smell issue. Spoke with homeowners about the systems history. We had delt with this before previously and found the UV light had corrected it. However when we switched back to cooling after the cold snap. It’s smelled awful, it’s been fading but the smell is terrible. Opened up system cleaned blower assembly and insulation. Verified the uv is operational. Inspected supply and return plenums. I recommend upgrading the UV to a whole home germicidal system. Attached are estimates for recommendations please feel free to reach out if you have any questions!