Sun Tex Mechanical | Local HVAC Services in San Benito, TX

Common signs include uneven temperatures between rooms, higher-than-normal energy bills, and excessive dust. In our humid climate, leaks can also introduce moisture. Our technicians perform a pressure test to locate leaks and then use professional-grade mastic sealant or metal-backed tape for a permanent seal, restoring your system's efficiency and improving indoor air quality.

A faulty reversing valve prevents your heat pump from switching between heating and cooling modes, leaving you stuck with one function. This is a common issue due to the constant cycling our Texas climate demands. We diagnose the valve and associated components. Often, the valve itself can be replaced to restore full functionality, saving you from a costly full-system replacement.

We recommend bi-annual professional tune-ups—once before summer and again before winter. This includes checking refrigerant levels, cleaning coils, inspecting electrical components, and testing system controls like the reversing valve. For DIY care, regularly changing your air filter is crucial to prevent strain on the system. This proactive approach catches small problems before they lead to major repairs or inefficiency.