Round Rock AC Repair is the process of restoring an air conditioning system to working order. Regular AC maintenance services optimize energy efficiency and extend the lifespan of your unit.
Unusual noises, a broken thermostat or a lack of cool air can all indicate that you need to call for AC Repair. Keep reading to learn more about common AC repair issues and how to avoid them.
1. Thermostat Issues
Whether you have an older mechanical thermostat or a state-of-the-art programmable smart thermostat, there are many different issues that can lead to your thermostat not working properly. Recognizing these common problems and taking the right steps to address them can help ensure your system functions correctly, improves indoor air quality, and reduces energy costs.
One of the most common thermostat problems is a failure to respond to commands. This may manifest as a blank display or the HVAC unit cycling on and off repeatedly without reaching the desired temperature. Fortunately, this is often an easy fix. In some cases, the problem is as simple as replacing the batteries in the thermostat. If the thermostat is wired to your home’s electrical system, a failed circuit breaker or blown fuse can also interfere with its ability to communicate with the HVAC unit. If this is the case, you’ll want to carefully inspect and ensure all wiring connections are secure and free from damage before attempting any repairs.
Another common thermostat issue is a faulty fan relay. If you’ve checked your thermostat and the fuses, but your blower is continuously running, it may be a sign that there is an electrical or mechanical issue with the fan relay. You can try poking a stick or screwdriver through the grille and giving it a little shove, but if you find yourself doing this multiple times in a row or your AC starts to cycle on but fails to cool your building, you should call for an inspection and AC repair. Working around electrical components can pose a serious safety risk, so this is an area where it’s best to leave the repair work to professionals.
2. Condenser Issues
The air conditioner’s outdoor unit is called a condenser, and it plays two major roles: it delivers cold refrigerant to the evaporator coil to capture heat and cool your home’s indoor spaces; and it disperses the refrigerant into the atmosphere. If your condenser isn’t performing well, you’ll be in need of AC repair service.
Your condenser may be suffering from a number of problems, from minor to serious. For instance, a dirty condenser coil will reduce its efficiency by restricting the flow of refrigerant. A qualified technician can remove dirt and grime from the coil, and clean it properly to prevent further issues.
A dead fan motor or motor control board can also interfere with your air conditioning’s ability to circulate refrigerant. You’ll know you have a fan problem if the condenser’s fan blades don’t spin, if they become so coated in sludge that they can’t move, or if they get stuck by something like a tree branch.
Another common condenser issue is a failing capacitor. This cylindrical component acts like a battery that provides the electrical boost necessary for your compressor and fan motor to turn on. Look for signs of a failed capacitor, including a bulging or leaking appearance, and a humming sound when the AC system attempts to start.
Other mechanical problems related to your air conditioner’s condenser include a clogged evaporator coil or a bent condenser fin. Fortunately, these are often easy to repair by yourself with a bit of effort. Just be sure to TURN OFF the power at your AC disconnect switch and circuit breaker before you begin! This is for your own safety and to avoid getting electrocuted.
3. Water Leaks
During the cooling process, your air conditioner pulls humidity from the air as it passes over the evaporator coil. This moisture turns into condensation, which should flow down the drain line to escape outside. If the condensation flow is interrupted, your AC could leak water into your home. Fortunately, most leaking ACs can be prevented with regular maintenance and cleaning.
The most common cause of AC water leaks is a clogged drain line. Over time, dirt and debris can build up in the condensate drain pipe, making it difficult for the system to empty the drainage line. A professional can clear out the clog and restore proper water flow.
Another common reason for AC leaks is low refrigerant levels. The pressure switches in your system monitor refrigerant levels and shut down your air conditioner when they’re too low. If one of the switches malfunctions, your system may not turn back on until the refrigerant levels are correct.
If left unchecked, an AC leaking water can lead to damage and mold growth throughout your home. If you notice water stains on walls, ceilings or floors around your AC unit, it’s best to call in the professionals as soon as possible to prevent further damage.
AC technicians have specialized tools and equipment to identify the source of your problem quickly and accurately, making them well-suited to perform a wide range of advanced AC repairs. They can clean the evaporator coil and drain pan, inspect the drain lines for signs of frozen coils or refrigerant leaks, and take other steps to ensure your system runs safely and efficiently. They can also offer extended warranties and financing to make it easier to invest in a new, energy-efficient AC.
4. Mechanical Issues
There are a variety of mechanical issues that can affect your AC system. Any signs of mechanical wear and tear need to be addressed promptly to ensure the health and proper functioning of your system. For example, if your air conditioner isn’t blowing as hard as it used to, this could indicate a problem with the fan, motor, or ductwork. A professional assessment will identify the root cause and determine the most appropriate course of action for your air conditioning repair.
Other mechanical problems to watch out for include strange noises like grinding or squealing, frequent cycling, and leaking fluids around the AC unit. Leaking fluids are often caused by a clogged condensate drain line or evaporator coils, while frequent cycling could signal low refrigerant levels or a faulty compressor.
Another common mechanical issue with your air conditioner is a blower motor that doesn’t work properly. The blower motor is responsible for sending conditioned air throughout your ductwork and into the living space, so if you notice a lack of airflow or strange noises when the air conditioner is running, it’s likely time to replace the blower motor.
Electrical issues, such as blown fuses or damaged wiring can also interfere with your air conditioner’s functionality. These issues are best handled by a professional due to the risk of electrical shock and other complications.
A faulty compressor is usually the most serious mechanical issue that needs AC repair, as it’s responsible for circulating and pressurizing the refrigerant to cool the air. Signs of a malfunctioning compressor may include warm or hot air blowing out of the vents, overheating, and tripping the circuit breaker frequently. Replacing a faulty compressor requires specialized knowledge and equipment, so this is typically a job for a qualified technician.
5. Electrical Issues
If your AC keeps tripping the breaker, creates a burning smell, or seems to be shutting itself off frequently, it’s time for a professional to take a look. These issues, ranging from loose wires to faulty electrical terminals, impact how well your system operates and often lead to mechanical failures. Ignoring them pushes your cooling costs up and puts your home at risk of dangerous electrical fires.
If you have basic electrical troubleshooting skills, a multimeter can help identify problems like voltage and continuity. If you’re unsure of what to look for, however, it’s best to let a professional take a look and do the work safely.
The most common AC electrical problems stem from wear and tear on the components inside your unit, especially the compressor. Over time, the constant vibration of air conditioning equipment can cause wires to loosen or break. Heat damage from the system’s motors can also affect those connections. A blown fuse usually points to more serious issues. Replacing a fuse without addressing the underlying problem only puts your system at further risk.
Routine maintenance checks for things like blown fuses, electrical panel tripping, and wire corrosion can keep these problems at bay. Our technicians can also upgrade older electrical components to improve performance and reduce the stress on your AC system. For example, replacing outdated capacitors and contactors with newer options can cut energy consumption and prevent overheating. Keeping the area around your outdoor unit clean and free of obstructions like grass, leaves, and twigs can further reduce strain on electrical systems. We also recommend that homeowners consider cleaning or changing their air filters every one to three months. Dirty filters restrict airflow, forcing your system to work harder and increasing the likelihood of breakdowns.