Are you wondering why your AC isn’t blowing cold air? Do you find yourself constantly adjusting the thermostat, but nothing seems to work? Or have you just turned on your air conditioner for the first time, only to discover that it is not functioning as it should?
Don’t worry if you’re having any of these problems; you’re not the only one.
The truth is that these are a few of the often reported issues with home air conditioning systems.
The good news is that this article will explore the 8 factors that will answer your question on why is my ac not cooling and how to fix it.
How to Troubleshoot Frequent AC Problems
1. Clogged Filter
Your air conditioner works by circulating cold air through coils and filters. The coils help to remove heat from the air, while the filters trap dust and other particles.
When these filters accumulate dust and other material, airflow is restricted, and cooling efficiency drops. As a result, your AC may start blowing warm air or may not be able to cool your home as effectively.
The air filter is one of the most crucial components to examine if your air conditioner isn’t functioning properly.
Therefore, changing the dirty air filter may fix the issue. However, if the filter is only slightly dirty, you may be able to clean it and reuse it. Either way, ensuring that your AC has a clean filter is essential in keeping it running smoothly.
2. Faulty Compressor
The core of your air conditioner is the compressor, which moves the refrigerant around the system. If the compressor fails, your air conditioner cannot cool your house. The most frequent reason for a non-functioning compressor is a shortage of refrigerant.
When refrigerant is lost, the remaining refrigerant must be circulated using more energy from the compressor. Due to this, the compressor may overheat and break down. In some cases, a faulty compressor can also be caused by a bad capacitor.
As the compressor in your air conditioner turns on, the capacitor aids in getting it going. If the capacitor is not functioning properly, the compressor will be unable to start and ultimately fail.
In order to fix this problem, you will need to have a professional AC repairman come out and look at your unit.
3. Dirty Coils
In your air conditioner, you will find two different kinds of coils: the condenser and the evaporator. Air is cooled by the evaporator coils, while the condenser coils cool the refrigerant itself. After some time, the dust and grime will begin to settle within the coils.
Because of this, your air conditioner may not be able to remove heat adequately and may instead produce heated air.
First, switch off your air conditioner and unscrew the access panel so you can clean the coils. After that, clean the coils with a soft brush to eliminate any grime or debris. You may also use a cleaning product to break up any tenacious grime. Replace the access panel after cleaning the coils and switch on the air conditioner.
4. Leaking Ducts
Cool air flow is circulated through a duct system if your home has a central AC unit. These ducts might develop leaks if they are ever damaged or come loose. If cool air leaks out of the ducts, your home won’t cool properly.
Sometimes, you may be able to see the leaks in your ductwork. However, in other cases, the leaks may be hidden in crawl spaces or behind walls.
If you suspect your air conditioner not keeping up as well as it should, then have a professional check your ductwork for leaks and make any necessary repairs. By sealing up your ductwork, you can help ensure that your AC runs more efficiently and keeps your home comfortable all summer long.
5. Broken Capacitor
The capacitor is a small component located near the outdoor unit of your AC. It aids in starting the compressor by delivering an electrical shock to it. The capacitor is susceptible to corrosion and general wear and tear with time.
When this happens, it can no longer provide an adequate electrical charge to the compressor, resulting in decreased cooling power. In some circumstances, a defective capacitor’s appearance will be enough to identify the issue.
There may be signs of burning or corrosion on the casing. In some scenarios, you may need to employ a multimeter to check the capacitor’s continuity.
If the capacitor is damaged, you must replace it. You can do this relatively simple task with just a few tools. However, you must ensure you buy the correct replacement capacitor for your AC unit.
6. Thermostat Issues
Your thermostat regulates the temperature in your house. It might prohibit the air conditioner from doing its job if it malfunctions. A few issues can cause problems with your thermostat, such as incorrect thermostat settings, dead batteries, or a faulty connection.
Fortunately, most thermostat problems have easy ac solutions:
- You should monitor battery life, and new batteries should be installed if necessary.
- Clean the thermostat’s sensors with a soft cloth. If the sensors are dirty, they may give inaccurate readings.
- Check that the thermostat’s settings are accurate. Incorrect calibration is one of the most common causes of thermostat issues.
When problems arise with your thermostat, try these easy solutions before giving up and hiring a technician.
7. Refrigerant Leaks
Refrigerant is a vital component of your AC unit. It helps to remove hot air and keep your home cool. But ultimately, there’s a chance the refrigerant line could leak, and the appliance won’t function correctly.
When this happens, ac can t keep up cooling properly. In some cases, you may be able to hear a hissing noise coming from the unit, which is a sign of a refrigerant leak.
A leak in the AC’s refrigerant can be a major hassle. Not only will it make your AC less effective, but it can also lead to expensive repairs. However, you can take some simple steps to fix a refrigerant leak:
- Look for telltale indicators of leakage, like damp spots around fittings and valves.
- Examine the system pressure with the use of a pressure gauge.
- There is probably a leak if the pressure drops.
- Use a UV light to trace the leak back to its source.
- Once you have located the source, you can repair the leak with a sealant or replace the damaged component.
8. Faulty Fan Motor
A faulty fan motor in your AC can cause your unit to work harder than usual, driving up your energy bills. Fortunately, fixing this problem is rather easy.
Start by checking the electrical panel to ensure the circuit breaker has not been tripped. Simply shut off the breaker and restart the machine if that’s the case. You must then inspect the actual fan blades themselves if this doesn’t work.
Check to see if there isn’t any damage that can restrict the passage of air. The problem may be with the motor itself if they seem to be in good condition. You can check for loose wires or other damage.
If you can’t find anything wrong with your air conditioner, it’s probably better to have a professional take a look. You may probably get your air conditioner working normally again with just a little troubleshooting.
Frequently Asked Questions
Q: When should I schedule maintenance on my air conditioner?
A: Every year, get your AC serviced. This will aid in making sure things run well and finding issues quickly. However, if you live in an area with extreme temperatures, you may need to service your AC more frequently.
Q: How can I determine whether my air conditioner is broken?
A: Some common signs that your AC unit may not be working properly include strange noises, higher-than-usual energy bills, and uneven cooling in your home. If you experience any of these problems, contacting an AC repair provider is highly recommended.
Q: What are some common causes of AC problems?
A: Some common causes of AC problems include dirty filters, low refrigerant levels, and faulty fan motors. By taking some simple steps to keep your AC unit clean and well-maintained, you can often avoid these issues.
Q: How can I prevent AC problems?
A: The best way to prevent AC problems is to keep your unit clean and well-maintained. This means changing the filters regularly, checking for leaks, and ensuring that all parts are in good working order.
Q: What are the symptoms of my AC unit needing refrigerant?
A: Some common signs that your air conditioning system may be low on refrigerant include poor cooling performance, high energy bills, and ice buildup on the coils.
Q: What if I can’t pinpoint the leak’s origin?
A: If you can’t find the source of the leak, the best course of action is to call a professional AC repair service. They will have the tools and knowledge necessary to locate and repair the leak.
Q: Can I add refrigerant to my AC unit myself?
A: No. Do not try to refill the AC system on your own. Hiring a specialist is recommended for this task.
Q: Can a whole house be cooled with a portable air conditioner?
A: It’s not possible to chill a whole home with a portable AC unit. They are designed for limited spaces.
Q: Is ac troubleshooting something I can do myself?
A: While some ac problems can be fixed by the homeowner, most will require the expertise of a professional. Unless you are experienced in electrical work and HVAC systems, it’s best to leave this work to the pros.
Q: How will it affect the indoor air quality of my house if I don’t have my AC unit serviced regularly?
A: If you don’t have your AC unit serviced regularly, it can build up dust and dirt in the system. This can then be circulated through your home, affecting indoor air quality.
A properly working AC unit is important, especially during the hot summer. You can often avoid major issues by taking some simple steps to keep your AC unit clean and well-maintained. However, if you do run into problems, there are a few things you can try at home to troubleshoot the issue.
Try to fix the AC problem yourself whenever possible, but if that fails, don’t be afraid to call in the experts. They can rapidly identify the issue and implement a solution, allowing you to get back to basking in your home’s comfortable temperature.