An AC break down in the Texas summer heat and humidity is an unpleasant experience. But air conditioner failure can be prevented. If you know the causes of common problems, then you can identify potential issues and get a repair before the AC unit fails. Here are the top 7 reasons why it can break down.
1. Refrigerant Leak
If the refrigerant level gets too low, the unit cannot cool the air effectively. Air conditioners cool air when circulating liquid evaporates into a gas, absorbing heat. A refrigerant recharge can fix the problem if there’s no damage, but if there’s a leak, the technician must find it. The job may require patching holes or replacing refrigerant lines, which can be expensive.
2. Dirty/Clogged Filter
Dirt and debris collect on the filter during normal use. Fortunately, it’s simple to clean an AC filter and you don’t even need a technician. The filter normally removes contaminants such as dirt and bacteria from the air. If it is clogged, poor air quality can result and airflow may be disrupted, making your AC work harder, which can strain the system and lead to more serious problems.
3. Frozen Evaporator Coils
The evaporator coil is where heat is absorbed from the air. It is filled with refrigerant and must be surrounded by warm air to function normally. An airflow problem can cause the temperature to drop around the coil, allowing a layer of ice to form. This prevents the system from warming the air (it may supply little or no heat) and can completely disrupt performance.
4. Fan Problems
Your AC has fans that blow air over the evaporator coil and help remove heat that an outdoor unit’s condenser absorbs. A fan problem leads to poor airflow. Caused by a faulty motor, worn belts, dirt, or insufficient lubrication, it also can lead to critical damage, such as compressor failure.
5. Sensor/Thermostat Problems
Sensors enable the thermostat to measure air temperature to control the system, so a sensor malfunction can cause the air conditioner to run longer, causing stress on components, or the AC can stop working entirely. A thermostat problem can therefore lead to component failure. Sometimes it can be corrected by recalibrating the device; if not, have a technician check into it.
6. Old AC and/or Component Failure
Air conditioners that are 10 years old or older are more likely to have mechanical problems. Frequent use can accelerate wear and tear, increasing the likelihood of an aging AC breaking down. A lack of regular maintenance can lead to trouble; a component can break unexpectedly or efficiency may be reduced. Replacing parts in your air conditioner can be very expensive and time consuming.
7. Poor Installation
If the AC unit, ductwork, and other components aren’t properly installed, the HVAC system may have systemwide problems. To avoid installation trouble, always work with a certified HVAC contractor who is licensed, bonded, and insured. You can therefore depend on them for high-quality installation, maintenance, and any service you need.
Contact The AC Hero
Air conditioners consist of numerous mechanical and electrical components that wear out over time. A problem with a single part can put pressure on the system, so it’s important to recognize and address small issues before they get worse. The AC Hero is available 24/7 to provide emergency service. We’re also open to provide repair and installation services during the COVID-19 pandemic, following all safety guidelines while working in your home. To request emergency service or schedule an appointment, call us today at 817-557-7586.