We performed a technical diagnostic and repair on a residential refrigerator in Mount Dora, Florida. After accessing the rear compressor compartment, we utilized digital manifold gauges and precision scales to monitor the R-600A refrigerant pressures. Our team identified and addressed a flow restriction within the filter drier and the three-way valve assembly. Following the mechanical repairs, we verified the integrity of the copper lines and service valves to restore the cooling cycle. This intervention returned the appliance to its manufacturer-specified operating temperatures and corrected systemic efficiency issues. The completed service ensures the refrigerator functions reliably and maintains consistent cooling performance for the homeowner.