HVAC Repair Houston TX | Call South Texas Air Conditioning & Construction

First, turn off the system at your thermostat to prevent further damage. A non-spinning fan often indicates a failed capacitor, a burnt-out motor, or an electrical issue—all common in our intense heat. Don't attempt to fix it yourself, as it involves high-voltage components. Call us for a prompt, expert diagnosis. We carry common replacement parts on our trucks to get your cooling restored quickly, preventing compressor failure and getting you relief from the Houston heat.

Yes, that's very likely. Houston's high humidity causes AC systems to remove a lot of moisture, which drains away. Over time, algae and mold can clog the condensate drain line, a frequent issue here. This can cause water damage and even trigger your system to shut off as a safety precaution. We can clear the blockage with specialized tools, apply an algaecide treatment to prevent recurrence, and check the safety switch to ensure your system and home are protected.

We recommend a professional tune-up twice a year—spring for your AC and fall for your heater. This service includes cleaning the condenser coils (vital for our dusty and pollen-heavy environment), checking and cleaning the condensate drain, testing capacitors and electrical connections before peak stress, and ensuring optimal refrigerant levels. This proactive care improves efficiency, prevents 80% of emergency breakdowns, and extends your system's life, saving you money and discomfort in our demanding climate.