HVAC Services Houston TX | Call Al's Cooling & Heating

In Houston's humid climate, evaporator coil freeze-ups are often caused by restricted airflow or low refrigerant levels. A dirty air filter, blocked vents, or a failing blower motor can limit airflow over the coil, causing it to get too cold and freeze. Our technicians can diagnose the root cause, perform necessary repairs, and provide maintenance tips to prevent future issues.

Signs include an unresponsive thermostat, your HVAC system short-cycling, or the heat and AC coming on simultaneously. In older Houston homes, wiring can degrade or connections can loosen over time. We safely inspect your thermostat wiring, repair or replace faulty connections, and ensure your system communicates properly for efficient operation.

Regularly changing your air filter is the single most important task. A clean filter maintains proper airflow, which is critical in our climate to prevent evaporator coil freeze-ups and system strain. We recommend checking it monthly, especially during peak summer and winter months, and changing it at least every 90 days for standard filters.