Cedar Creek Air conditioning service Upon my arrival I performed a 6 month checkup on 1 furnace system. Flushed and treated the water removal system, cleaned the flame safety sensor, verified proper fuel delivery, checked for CO then verified system safety and performance. I found the system performing to manufacture specifications at this time. No CO detector is present in the home and the customer will be getting one for the home. While onsite customer stated the outdoor system has been operating a lot louder then it was prior to the last repair performed. I checked the systems electrical components and found them within manufacture specifications at this time. I advised that if this happens again to inform the office so we can schedule a service call to diagnose the issue. Currently to cook outside with the rain and cooler weather to get an accurate diagnosis.