Having an AC that works properly is crucial to comfortable living. However, it isn’t always easy to know exactly what problems might arise and when.
If an AC fails to turn on, first check that the unit is plugged in and that its circuit breaker hasn’t tripped. Then check the thermostat’s batteries and other simple things. Contact AC Repair Round Rock TX for professional help.
The thermostat is one of the most important parts of your air conditioning system. It controls the temperature in your home and tells the system when to turn on and off. If it’s not working properly, it can lead to problems with the rest of your AC. If your thermostat is having issues, it’s time to call a professional for AC repair.
The first thing you should do if your thermostat isn’t working is change the batteries. Often times, this will fix the problem and get your unit running again. If the issue persists, you may need a new thermostat.
Another common thermostat problem is the display not lighting up. If the screen is completely dark, this means that it’s time to change the batteries. If that doesn’t work, it could be a problem with the wiring or internal malfunction.
Finally, if your thermostat is displaying an inaccurate temperature reading, this is a sign that it’s time to replace the sensor. A faulty sensor can cause the AC to overcompensate and run constantly, leading to higher energy costs.
Thermostat problems can also affect the performance of your air conditioner by causing it to short cycle. Short cycling causes the AC to start and stop repeatedly, which places stress on the motors and can cause them to burn out.
If you notice any of these problems with your thermostat, contact us to schedule an appointment for AC repair. Our experienced technicians will be able to diagnose the problem and provide technical solutions for your home.
Clogged Evaporator Coil
A clogged evaporator coil prevents your AC from efficiently cooling your home. This coil is paired with your furnace inside the air handler and works together with the outdoor condenser coil to remove heat from your indoor space. A dirty coil causes your system to work harder and longer to reach a desired temperature. It also acts as an insulator, restricting airflow and further decreasing efficiency.
If your evaporator coil is dirty, it’s likely a sign of low refrigerant or a dirty filter. Both of these problems cause a drop in airflow, which can lead to the coil becoming iced over. A clogged evaporator coil is also an indication of a problem with the compressor or blower motor.
The evaporator coil is usually easy to clean, but the process requires that you shut off the power to your air conditioning unit and find the access panel in the attic or closet that houses the internal air handler. Once you have the right tools, start by turning off power to the unit by flipping a switch in your breaker box or finding the power switch located near the air handler.
After you have the coil uncovered, you can use a brush or vacuum cleaner to clean it. Be sure to turn off the power again when you’re done. Then, make sure you put everything back the way it was before you power the system back on.
Keeping your evaporator coil clean isn’t hard, but it’s something you need to do regularly to keep the coil from getting too dirty and clogged. If you’re unsure of how to do this, it’s best to call an HVAC professional.
The evaporator coil is one of the most important parts of your air conditioner, but it can also be a source of trouble when it’s not properly maintained. A clogged evaporator can prevent the AC from cooling your home effectively, so be sure to call an AC repair technician if you notice any of these issues. They’ll be able to help you get your system back up and running in no time.
Failed Contactor
A failed contactor can be one of the biggest reasons your AC won’t start up. This essential component is a key part of the electrical communication between the compressor and condenser fan motor. This miscommunication can cause the motor to fail to come on, making it difficult for your home to cool. Recognizing the signs of a failing contactor can help you know when it’s time for replacement.
Common causes of contactor failure include poor quality, frequent use, and age. Poor quality can result from inadequate design or manufacturing, which leads to a lack of proper contact between the electrical contacts. This lack of contact can lead to erratic operation, or even worse, complete contactor burnout. Frequent use can also wear down the contactor, especially if it is subject to repeated peak surges without any time to cool between each one. This can damage the coil spring and armature, which will prevent the contactor from engaging or disengaging correctly. Age can also lead to a mechanical failure of the contactor coil, such as material fatigue or structural stress.
If you suspect that your contactor has failed, the first step is to shut off the power at the circuit breaker box. After that, you can begin to troubleshoot the problem. With the power off, visually inspect the contactor for any obvious signs of wear and damage. A corroded or dirty appearance may be an indicator that it’s time for a replacement. You can also test the coil continuity with a multimeter to ensure that it is still functioning properly.
Finally, you can discharge the capacitor by bridging its terminals with an insulated screwdriver to minimize the risk of shock. Once the capacitor is completely disconnected, you can begin to replace it with a new one of similar specifications. Be sure to connect it according to the wiring diagram on the unit’s frame and make sure that all connections are secure before reconnecting power and testing the functionality of the replacement. For more information about replacing and resetting AC components, be sure to speak with a trusted AC technician.
Broken Blower Motor
The blower motor is responsible for sending the airflow from your HVAC system through ductwork and into your living spaces. When it breaks, it can cause a variety of issues that affect your home comfort and may also lead to a higher utility bill.
One of the most common signs of a broken blower motor is that no air comes out of the vents when the fan is turned on. This could mean that the motor is not functioning correctly or that it has a serious problem such as a bad capacitor, relay or fuse. In other cases, a switch, resistor or electronic control module can be to blame. Often, this type of issue can be solved by cleaning the corroded leads or replacing the component.
A screeching or squealing noise from the blower motor is another common sign of a problem. This is due to the bearings wearing out and can be a similar sound to when a car’s belt starts to wear.
If you hear this sound, it’s important to turn off your furnace and let the blower cool down before starting a DIY repair. This will prevent you from injuring yourself or causing more damage to your equipment. Once it is cool, you can start to troubleshoot the problem by removing the blower cover and inspecting the components.
Next, you should check the blower speed control. This is usually a red button that connects to a small circuit breaker inside the blower. It can pop if there’s an overload and will need to be pushed back in. It is also a good idea to look for the wire that connects to this button and make sure it’s not damaged or disconnected.
Another test you can try is to measure the voltage on both the low and high blower speeds. You should see around 4 to 6 volts on the low speed and 12 volts at the highest speed. If the voltage is lower than this, you will need to replace the blower motor.
A faulty blower motor is not only difficult to diagnose, but can be costly and dangerous to try to fix yourself. This is why it’s best to call an AC professional as soon as you notice a problem. They will be able to identify the exact cause of the issue and determine the best solution.