When a problem arises, your AC needs prompt repairs. Scheduling routine maintenance visits can help extend the lifespan of your unit and improve performance and energy efficiency.

A faulty fan motor can cause your AC to stop cooling. Fortunately, this is a relatively easy repair: a technician can shut off power, drain the capacitors, replace them, and turn back on your system. Contact AC Repair Round Rock TX for professional help.
The air filter is an essential part of your HVAC system, acting as a gatekeeper that prevents harmful debris from entering and damaging the rest of the system. It’s a small component that makes a huge impact on the overall performance of your system. Unfortunately, ignoring or neglecting this simple maintenance task results in high-cost AC repairs down the road.
A dirty filter can cause an AC unit to malfunction in a variety of ways. For example, it can restrict the flow of air into and out of the unit, preventing cool air from being circulated in your home or business. If this problem persists, it can eventually lead to evaporator coil freeze-up and other costly air conditioning problems.
Dirty filters can also increase energy consumption by forcing the system to work harder to compensate for the restricted airflow. This translates to higher utility bills and increased wear-and-tear on components, which can lead to early failure.
Another way a dirty filter can affect your AC unit is by causing short cycling. This occurs when the unit cycles on and off repeatedly, causing the system to overheat and overwork. Short cycling can damage the compressor, leading to premature replacement or repair.
It’s important to check and change your air filter regularly, especially in homes with pets or smokers. It’s also a good idea to schedule regular professional HVAC maintenance, so you can be sure your system is operating properly all year round. An experienced technician can inspect and replace your air filter as well as carry out other vital maintenance tasks to keep your system working smoothly. Contact us today to learn more about our reliable air conditioning maintenance services.
Leaking Condensate Line
When water begins to drip from the pipe connected to your air conditioner, it’s time to call for help. This is a sign that your AC system’s condensate drain line is blocked or clogged, which can lead to water damage in the home. The air conditioning system cools the air, but it also creates humidity that collects on the evaporator coils. This moisture is drained into a pan through the drain line and then out of the house to prevent water damage. Over time, mineral deposits, dirt, debris, and mold can clog the drain line.
A clogged or blocked condensate line can impact your system’s cooling performance by preventing the excess humidity from draining away. This can lead to the formation of ice on the evaporator coil, which in turn inhibits your AC’s ability to properly cool the air.
You can check for a clogged or blocked condensate drain line by looking at the auxiliary drain pan located under the indoor unit. This pan is easily visible, so it’s a good idea to inspect it frequently for rust or cracks. You can also look at the float switch in the pan to ensure it’s functioning correctly.
A leaking drain line is not just an eyesore, but it’s also dangerous for your home and can lead to serious water damage. This leaking water can lead to water stains on your ceilings, walls, and floors, as well as mold and mildew that compromise indoor air quality. It can also cause rot and corrosion in your air conditioning system. The best way to deal with a leaking AC drain line is to contact an HVAC professional as soon as possible to prevent further damage and expensive repairs.
Failing Compressor
Your compressor is one of the most crucial parts of your AC system. It’s responsible for compressing refrigerant gas so that it can be pumped throughout the system to remove heat from your home.
When the compressor fails, you will probably notice that your air conditioner isn’t cooling your home as effectively as it used to. In some cases, you may also notice that the air is warm or room temperature instead of cool. If you’re noticing these symptoms, it’s important to contact a professional as soon as possible to avoid further damage to your compressor.
One of the most common reasons for compressor failure is a lack of regular maintenance. Over time, dirt and debris can clog filters and reduce lubrication effectiveness, leading to increased friction and heat buildup. Regular cleaning and replacement of air filters will help to prevent these issues.
Other causes of compressor failure include a failing start relay, electrical problems, and overcharging or undercharging your refrigerant. Installing a surge protector and scheduling yearly AC tune-ups will ensure that these problems don’t develop.
If you’re hearing a clicking noise when your compressor turns on, it could be a sign that the start relay is starting to fail. This problem can often be fixed by replacing the starter capacitor.
A failing compressor can also be caused by leaking refrigerant or overcharging. Leaks in the system can reduce refrigerant levels, forcing the compressor to work harder and reducing its lifespan. Undercharging can also cause damage to the compressor’s internal components. In some cases, a technician may be able to fix this issue by adding more refrigerant to the system. In other cases, the compressor will need to be replaced entirely.
Failing Contactor
A faulty contactor can cause your AC unit to turn on and off randomly. The air conditioning contactor acts like a switchboard, procuring power to the fan motor and compressor. Over time, this component can burn out due to normal wear and tear or overheating. When it burns out, the components that it supplies power to will not turn on when the thermostat signals them to do so. You may also notice a chattering sound when the contactor relays electricity.
When you have a functioning AC contactor, the coil of the component creates magnetic fields that pull the plunger into place, closing the circuit and supplying electricity to your system. Over time, the coil can become dirty or weak. This causes the plunger to vibrate instead of making a solid connection, and it generates a chattering sound when you switch on your AC. This is a common sign of a faulty contactor and should be addressed immediately by an AC repair technician.
The first thing to do when you suspect a bad air conditioning contactor is to shut off the power at both the thermostat and the breaker. Once the power is off, remove the side panel of your outdoor condenser unit and use a screwdriver to unscrew the contactor. Take a picture of the wiring and contactor before removing it so that you can refer to it later when reconnecting the wires. Before you replace the contactor, set a multimeter to the OL setting and connect it to the low-voltage terminals on both sides of the contactor. The multimeter should read 5 to 20 volts if the contactor is working correctly. Replace the contactor and rewire, using the photo as a guide.
Failing Blower Motor
The blower motor pushes air through your ducts and into your living spaces. A failing blower motor won’t move much air, which can cause discomfort. If your blower motor is bad, it might produce strange noises, too. Unusual squealing, grinding, and rattling sounds are often symptomatic of an overheating blower motor or a problem with the fan assembly.
Another common symptom is weak or no airflow from your vents. The blower motor may be failing to push air through your ducts or it could be clogged with dirt and dust. If the symptom is caused by the blower motor itself, you will likely need to have it replaced by a licensed HVAC technician.
No blower fan power indicates that the blower motor isn’t getting any electrical power. This could be due to a bad relay, fuse, or resistor. It can also be a sign of a dead motor, a jammed fan wheel, or a control board problem. You can test a motor by jumping out 120 volts on the wires to see if it kicks on. You can also test the run capacitor (a cylindrical component near the motor) for voltage and different speeds with a multimeter. A faulty capacitor can often be replaced quickly and inexpensively.
A faulty speed control module can also prevent your blower motor from working. This component regulates the blower motor’s speed based on thermostat demands. It’s prone to overheating and corrosion, which can cause the same symptoms as a failed resistor pack. You can test a speed control module by disconnecting it from the blower motor, checking for voltage on its connector, and replacing it if necessary.



