Trusted HVAC Repair in Smithville, TX 78957 - Mark's Heating & Air Conditioning

This is a common issue here, often caused by loose or corroded thermostat wiring from our local humidity and temperature fluctuations. Our technicians carefully inspect the wiring at the thermostat and the HVAC unit itself to ensure secure, clean connections. We diagnose the specific fault, whether it's a bad connection, a faulty transformer, or a tripped safety switch, and provide a reliable repair to restore consistent control of your home's temperature.

Our humid climate means your AC produces a lot of condensation. This moisture, combined with dust, algae, and mold spores common in our area, can quickly clog the drain line. We recommend an annual HVAC maintenance visit where we will flush the condensate drain with a special solution to clear blockages and prevent future clogs. This simple service helps prevent water leaks, system shutdowns, and potential indoor air quality issues.

Absolutely. Many modern HVAC systems have a safety float switch that shuts the unit down when the drain pan fills up from a clog—a frequent occurrence here. Our service call includes clearing the primary condensate drain line, checking the secondary drain, and resetting the safety switch. We'll get your cooling restored quickly and advise on maintenance to help prevent a repeat shutdown during our hottest months.