L and K Heating and Air Conditioning | Professional HVAC Repair in San Marcos, TX

The Central Texas climate and local soil contribute to significant dust. A clogged filter is a common culprit for poor airflow and strain on your HVAC system. We recommend checking your filter monthly and replacing it every 1-3 months, especially during high-use seasons, to maintain efficiency and indoor air quality.

It could be. The reversing valve is crucial for changing your heat pump's function between heating and cooling. Issues often arise from electrical failure, refrigerant problems, or mechanical sticking. Don't let a faulty valve run up your energy bill—our technicians can accurately diagnose and repair this common local issue to restore your comfort.

Beyond regular filter changes, we recommend biannual professional maintenance. Before summer and winter, our tune-ups include checking refrigerant levels, cleaning coils, inspecting electrical components, and testing the reversing valve and other heat pump functions. This proactive care prevents breakdowns during extreme temperatures and extends your system's life.