How Texas Intense Heat and Humidity Trigger Common AC Repair in Houston, Texas
Southeast Texas summers are notorious for pushing both homeowners and their HVAC systems to the absolute breaking point. In Houston, weeks of triple-digit heat and stifling humidity force air conditioners to run virtually around the clock.
In Texas, your AC isn’t a luxury—it’s a critical necessity, especially for vulnerable family members like infants, the elderly, or family members with respiratory issues. Since our air conditioners are forced into non-stop work, mechanical and electrical components tend to wear faster than systems in milder climate conditions.
The Destructive Combo: High Heat and Failing Capacitors
One of the absolute most common AC repair issues triggered during extreme heat involves the electrical components, specifically the capacitor. An HVAC system capacitor is like a high-powered battery that provides the electrical spark to your system’s motors to turn on.
With any electrical spark, there is heat. Combine that heat with extreme temperatures, and the outdoor condenser can become hot enough to overheat, swell, or even fail completely. If your condenser fails, your outdoor unit will buzz loudly or even lose power suddenly. Replacing this capacitor needs to be done by a professional HVAC technician, and if neglected, the compressor motor will strain and could lead to complete system failure.
Excess Humidity and Frozen Evaporator Coils
Frozen evaporator coils are one of the most frequent reasons homeowners call for AC repair. It sounds illogical to think that your evaporator coil can “freeze” up in the sweltering heat of a Houston summer.
An air conditioner cools the air, circulates it through your home, and removes humidity and warm air, all at the same time. As hot, moisture-laden air from your house moves across the cold indoor evaporator coil, excess humidity condenses on the metal surface and safely drains away. If this thermodynamic process gets out of balance, situations can arise quickly.
Blocked air filters or low system refrigerant levels will cause the evaporator coil to freeze up. Condensation that has accumulated will turn to ice, creating ice blocking the system’s cooling ability. If you notice your HVAC system suddenly blowing warm or even hot air or if you spot ice forming on your unit (indoor or outdoor), a frozen evaporator coil is the culprit.
Electrical Strain and Tripped Circuit Breakers
The heat and humidity will also put a strain on the electrical components of your HVAC system. When an air conditioner runs continuously to maintain the desired comfort level, the blower motor, outdoor fan, and compressor draw a heavy electrical current. This high demand on your system will cause wear on control boards and can loosen electrical connections.
You will notice your HVAC system short-cycling or a sudden draw of electricity will trip the circuit breaker. Flipping the breaker back on is only a temporary fix. As the system cycles back on, the process will repeat itself and trip the breaker again. It is best to seek AC repair immediately before this issue escalates.
Protect Your Cypress Home with Preventive Maintenance
Many of these HVAC system failures can easily be prevented with routine AC maintenance. Using your HVAC system in the Houston area is necessary; making sure your system components are well-maintained will reduce wear and tear and potential AC repair costs. Here are the top issues to pay close attention to:
- Regularly replacing your HVAC filter every 30 days
- Clean your outdoor condenser coils and keep it free of debris
- Schedule routine AC maintenance twice a year. (Spring and Fall)
Addressing these system components can easily reduce wear and tear and repair costs.
If you notice any of the warning signs, such as the inability to maintain the desired comfort level, strange smells coming from your system, loud noises, or warm air coming from your system, it is time to call for an AC repair appointment. Houston Trane has an efficient Trane Dealer Locator that allows you to connect with a qualified Trane Comfort Specialist to address any AC repair, AC maintenance, or AC replacement needs you might have.