GSHA Services, LTD diagnosed and serviced a central air conditioning system that was struggling to keep up on a hot July day for a homeowner in Deerfield, IL. Our HVAC technician connected digital gauges and probes to the outdoor condenser, measured superheat, subcooling, and line temperatures, found the system undercharged, weighed in the correct refrigerant charge, and then completed a full AC maintenance: cleaning the condenser coil, checking the capacitor and contactor, testing amp draws, and verifying the temperature split at the supply registers. The system left running at factory specifications with the readings documented for the homeowner. Need an air conditioner diagnostic, AC repair, or seasonal AC tune-up in Deerfield, Northbrook, Highland Park, or Lake County? GSHA Services provides honest cooling repair with upfront pricing.