What Does a Fall Furnace Tune-Up Find in Cary?
Cary · October 2026 · Manny, Jaquan, Mario, Jeorell & Dexter · From our service records
What we found and did
On the 2nd floor system, the blower run capacitor tested 4.28 on a 5.0 mFd rating (out of spec / weak, about 14.4% drop). The blower wheel was heavily coated with dust and debris across all fins, and the UV germicidal light assembly was severely corroded. With the homeowner's approval, the team removed the weak capacitor and installed a new 5.0 capacitor. On the 1st floor system, the blower motor drew a normal 3.4 A, the capacitor tested good, and the blower wheel was dirty but the system was performing fine. The team noted that the 1st floor furnace (16 years), coil (17 years) and outdoor condenser (16 years) are all original and at the end of their expected lifespan.
Result
The 1st floor furnace was heating effectively, with a 59.6F temperature rise (135.2F supply, 75.6F return) that the technicians noted was within design specifications.
