L & S HVAC - Pelzer's Qualified HVAC Repair

First, check your air filter and thermostat settings. If those are fine, it could be a refrigerant issue, a dirty condenser coil, or a failing component. Since this is a common problem in our climate, we recommend scheduling a service call. Our technicians can quickly diagnose the root cause—whether it's a simple fix or a sign you need a repair or replacement—to restore your cool air efficiently.

Common signs include the system not switching between heating and cooling, blowing lukewarm air, or unusual hissing noises. Reversing valve issues are a frequent repair need in our area due to system strain. Our expert technicians will test the valve and its electrical components. We can often repair the issue, but if the valve is faulty, we'll recommend a precise replacement to restore your system's proper function, ensuring year-round comfort.

Regular maintenance is key to preventing the most frequent local issues, like AC failure during heat waves. Our maintenance service includes cleaning coils, checking refrigerant levels, inspecting electrical components, and testing system operation. This proactive care helps catch small problems—like a reversing valve starting to stick—before they cause a complete breakdown, improves efficiency, and extends the life of your system, saving you money and discomfort.