30DEC2024 Jason Brown Arrived for fall tune up. Spoke with homeowner about the maintenance contract and tune up. We agreed to pay $20 today to restore the maintenance contract and cover the first tune up. I spoke with the homeowners about the systems performance. They explained that it’s working well, except that they have been experiencing respiratory issues since moving into the home. Also, something is coming out of the ductwork or from around the supply in the bedroom. They have a standalone are purifier, and humidifier they operate aside from the central heating and cooling system. I inspected the ductwork and attic. I found insulation to be adequate, and ductwork connected properly. However it is outdated and could be improved. I found the vent for the bathroom exhaust ran over max length with a belly in it. Any dip or sag is a place for moisture to condense and cause issues. I then checked over the furnace and found everything working well. However the return chase is not sealed