Martinez Air Conditioning & HT - George West's Best HVAC Repair

In our area, short cycling is often caused by two main issues related to the extreme heat. First, a dirty or frozen evaporator coil can't absorb heat properly, causing the system to shut down prematurely. Second, an overcharged refrigerant system or a failing capacitor can't maintain the correct pressure and electrical charge needed for sustained operation. We'll perform a diagnostic to pinpoint the exact cause—often a quick fix—to prevent wear on your compressor and lower your energy bills.

Systems that have been idle or under-maintained struggle when suddenly tasked with cooling against 100+ degree temperatures. The most common failure points during our heatwaves are the capacitor, which gives the compressor and fan motors the jolt to start, and the contactor, which engages the high-voltage operation. Both components are under immense stress in extreme heat and can fail. A pre-season tune-up from our team can test these components and clean essential parts to ensure your system is prepared for our toughest weather.

The single most important thing is keeping your outdoor condenser unit clean and clear. Our South Texas environment leads to rapid buildup of grass clippings, dust, and pollen on the coil fins, which acts like a blanket and traps heat. This causes the system to overwork, leading to high pressure, short cycling, and eventual failure. We recommend gently hosing off the unit (when it's off) and keeping at least two feet of clearance around it. For a thorough cleaning and professional inspection of refrigerant levels and electrical components, schedule an annual maintenance visit with us.