Diagnosed faulty electrical components in 4-ton split system in Giddings. Multimeter testing revealed blown 30-amp fuse and damaged contactor. Replaced fuse and installed new 40-amp contactor. Inspected wiring for signs of overheating or corrosion. Tightened all electrical connections and applied dielectric grease to prevent future oxidation. Verified proper voltage across terminals and measured amperage draw on compressor startup. System now operating within manufacturer specifications, restoring efficient cooling.