County Line Heating, AC, and Refrigeration: Qualified HVAC Repair Serving Lubbock 79407

An older or improperly sized system is a common cause of coil freeze-ups in our climate. During a professional installation or replacement, we ensure your new unit is the correct size (tonnage) for your home's square footage and insulation. A properly sized system runs in balanced cycles, preventing the low refrigerant pressure and airflow issues that lead to freezing, which is a frequent problem we see here.

Absolutely. Faulty or corroded thermostat wiring is a very common HVAC issue in Lubbock homes, often due to age or previous DIY attempts. Our repair technicians are experts at diagnosing wiring problems at the thermostat and within your system. We'll safely trace the connections, repair or replace damaged wires, and ensure your thermostat communicates correctly with your HVAC equipment to restore precise temperature control.

First, turn the system off at the thermostat to let it thaw. A frozen coil is often a repairable symptom of issues like low refrigerant, a dirty air filter, or a failing blower motor—all common problems we handle daily. Our repair service will diagnose the root cause, such as a leak or airflow blockage, fix it, and get your current system running efficiently. We only recommend replacement if the repair is not cost-effective or the unit is beyond its service life.