A well-functioning AC unit is essential to home comfort. However, it is not immune to breakdowns. HVAC maintenance is essential to preventing breakdowns and minimizing their impact.
If your AC system isn’t producing cold air or making loud noises, there could be an issue with the cooling cycle or a faulty component. The good news is, many of these issues can be resolved with simple AC Repair.
Dirty evaporator coils can cause a variety of AC problems, including low cooling power, uneven heating in homes and offices, and increased energy bills. Fortunately, this is a problem that can easily be prevented with routine cleanings and proper installation practices.
The evaporator coil in your air conditioning unit is responsible for dissipating heat, so it’s no surprise that this part of the system is susceptible to clogs and other issues. The simplest reason for this is simply a build-up of dust and dirt, but there are other potential causes as well. These include poor installation and lack of regular maintenance.
When dust and dirt accumulate on the evaporator coil, they create an insulating layer that inhibits heat transfer. The cooling process is hindered, and the system will have to work harder and longer to achieve the same results. This is a sure sign that the evaporator coil needs to be cleaned.
In addition to reducing efficiency, dirty coils can also lead to an increase in moisture inside your air conditioner. This moisture serves as a breeding ground for mold, mildew, and other microorganisms that affect indoor air quality. It can also clog the coil fins, further impeding heat transfer and lowering cooling efficiency.
If you notice any of these symptoms, the first thing to do is turn off your AC and unplug it from the power source. Next, use a can of compressed air to blow away any large particles of debris from the coil surface. You can also clean the fins with a soft brush to remove any built-up dirt and grime. Just be careful not to damage the delicate coil fins with too much pressure.
If you don’t feel comfortable opening up your AC unit, you can call a professional. An experienced HVAC technician can inspect the unit and determine if the evaporator coil is dirty. They can then perform the necessary cleaning and maintenance to ensure your air is clean and conditioned. They may also recommend replacing the air filter to help prevent future build-up, as well as checking the refrigerant level to make sure it’s at the correct level.
Failed Contactor
There’s a lot of electrical circuitry in an air conditioning system, and even the smallest failure of a single component can cause an entire system to fail. There are some components that are more likely to experience problems than others, and two of these are the capacitor and contactor – an electrical tag team that work closely together to power up your AC.
The contactor is the component that controls the flow of electricity to the compressor and condenser fan motor in an air conditioning unit. The contactor can get stuck in either the open or closed position, resulting in your AC running nonstop (even when your thermostat is set to “off”).
If you suspect that your contactor has failed, you should start by turning off the power to your AC. This should be done at both the thermostat and breaker box to prevent shock risks.
Next, remove the cover from your outdoor unit to expose the wiring connections. You should find a small, black rectangle that looks like a drawbridge that opens and closes to make or break power supply lines. The contacts within the contactor are connected by metal strips that allow the current to pass through – these can wear down or become welds over time, causing the contacts to fail.
A failing contactor can also produce a rapid clicking noise as it rapidly tries to engage and disengage. This can also lead to visible signs of overheating or a burnt smell, alerting you that it’s time for a replacement.
The arcing that occurs when the contactor fails to engage or disengage causes heat to melt cable insulation and even weld your contactor’s metal contacts together. As a result, your contactor might be visibly damaged, or you may notice that the plastic coating has melted away. In addition to these visual indicators, your contactor might also sound distorted or buzzy when it is defective. These sounds are due to the failure of your AC contactor’s contacts, and they can cause the entire unit to fail. You should call a professional immediately to replace your AC contactor if you hear these sounds.
Failed Blower Motor
Your blower motor is an essential part of your air conditioning system, circulating heated or cooled air throughout the entire home. If it is failing, your system won’t operate as intended. A common sign of a failing blower motor is weak airflow from your home’s vents. This may indicate that the motor is clogged, needs a new capacitor, or is nearing the end of its life. A licensed HVAC technician can determine if this is the case and recommend an appropriate repair solution.
Unusual Noises
Another sign that your blower motor is beginning to fail is unusual sounds that it makes while running. You might hear squealing or rattling noises, which could indicate that the bearings are getting worn out and need to be replaced. A loud banging sound may also occur if something inside the blower is loose or broken. In any event, these sounds should be investigated as soon as possible to avoid a more serious problem in the future.
Increasing Energy Bills
If your electric bills are suddenly higher than usual, it’s possible that the blower motor is struggling to circulate enough air and overheating. The motor uses a lot of power to function, so overheating can cause it to shut down until the motor cools down. This can be very expensive, especially if the motor is at the end of its life and isn’t functioning well.
Before attempting any repairs on your blower motor, it’s important to turn off the power supply to the unit to prevent injury or damage. The best way to do this is to find the red reset button, which is usually located on the back of the blower motor and will pop out if you push it. Once you’ve done this, you can remove the cover and let the blower motor cool down to a safe temperature. From there, you can inspect the motor for signs of wear and tear. If you see any, consider replacing the capacitor or lubricating the bearings to get it back in working condition. The blower motor is an essential component of your air conditioning and heating systems, so it’s important to keep it in good condition to ensure that your home is comfortable all year round.
Failed Thermostat
Thermostats are an important piece of equipment that help your AC and heater function properly. However, like any other electrical device they can break down from wear and tear or from a failure due to a variety of issues. It can be frustrating when your thermostat breaks down, especially in the middle of a hot summer or cold winter. But before you call for AC repair, there are a few things you should try. First, make sure the batteries are fresh. This is a simple task that takes less than a minute. Then, if the display on your thermostat is dark or blank, check the circuit breaker to see if it has been tripped. If it has, simply flipping it back on may fix your problem.
You should also clean your thermostat regularly to prevent dust and dirt from causing problems. To do this, turn off the power source and remove the cover. Then, using a brush or compressed air, clear any dust or debris from around and inside the thermostat. It is a good idea to perform this once a year. Another way to keep your thermostat from malfunctioning is to schedule regular furnace and air conditioner maintenance visits. During these visits, your certified technician will test the wiring connections and catch any signs of wear or damage to your thermostat that could lead to a failure.
Faulty wiring is a common cause of thermostat failure. If the wires connecting the thermostat to your HVAC system are loose, dirty, or disconnected, they won’t be able to communicate. Thermostats also tend to get worn out over time, especially if they are exposed to excessive wear or a lot of power surges.
A failed thermostat can cause your HVAC system to short-cycle, which can increase your energy bills and reduce your comfort. If your thermostat isn’t working the way it should, contact SuperTech and we will help you resolve the issue. We have a team of trained and experienced technicians that can diagnose the problem, offer technical solutions, and help you save money and stay comfortable all year round.