It is never convenient when an AC unit breaks down, but doing routine maintenance can help prevent costly repairs. Read this to find out what common ac repair issues homeowners should watch for.
Make sure Heating And Cooling Van Nuys technician has easy access to the outdoor unit by clearing weeds and furniture from around it. Also, clean regularly touched areas that technicians frequently visit such as air filters and breaker boxes.
A thermostat is one of the most important parts of an air conditioning system and is often at the center of issues with AC function. If your thermostat isn’t functioning properly, it can throw off the entire system and make your home uncomfortable. Thermostat problems can range from inaccurate temperature readings to a complete loss of functionality. If you are having thermostat issues, there are a few things you can try before calling in an expert for ac repair.
One of the most common reasons your thermostat won’t work is because it is dirty. Dust, lint and pet hair can build up on the inside of your thermostat over time, intercepting the signals it sends to the HVAC system. To clean your thermostat, remove it from the wall and gently wash the inside with a soft brush or cloth. A loose or damaged wire can also cause a thermostat to malfunction.
Another common thermostat problem is that it doesn’t shut off when your house reaches the desired temperature. This is an indication that the thermostat is faulty and needs to be replaced. If this happens, your AC will constantly run and put unnecessary stress on the compressor.
If your thermostat isn’t working and you aren’t sure why, consult your owner’s manual to see what steps you should take. Some basic thermostat issues can be fixed by replacing the batteries or resetting the device, while others may require a professional. Also, be sure to check that all vents throughout your home are open and not obstructed by furniture or other objects so that cool air can circulate freely. A lack of cool air could indicate a problem with the cooling cycle or refrigerant flow.
Freon leaks are a common AC issue that can have a huge impact on your system’s efficiency and effectiveness. They occur when the copper lines or evaporator coils start to develop small holes. Typically, this is caused by erosion of the metal from formic acid or formaldehyde corrosion that has been forming over time. This usually occurs around the schrader valve, valve cores, evaporator coil, copper line set, “U” connectors and weld joints.
Freon is a colorless, non-toxic and tasteless substance that is used to cool air. When a freon leak develops, the evaporator coil can’t absorb heat efficiently which causes it to work harder to cool your home. This extra effort leads to higher energy bills than normal.
If your air conditioner is leaking Freon, it will require a technician to find and repair the source of the leak. The tech will use one of a few quick methods to look for the leak. They will typically begin by looking for a small amount of oil that has collected around the leak site. They may also spray or dab a little soapy water on suspect areas of the unit. This can help to create bubbles that give away the location of a Freon leak.
While recharging your system with more refrigerant can temporarily fix an AC leak, it is not a long term solution. It won’t address the underlying problem and will likely result in another leak or a shortened lifespan for your air conditioner. It is always best to find the source of the leak and repair it before you end up in a position where the entire system needs to be replaced.
The air ducts in your home might be invisible, but they are a critical part of your AC system. They circulate conditioned air throughout your building and improve the indoor environment by filtering out mold, dust, pet dander and outdoor pollutants. If the ducts become blocked, it can lead to uneven cooling, high energy bills and odors.
The most common symptom of clogged ductwork is different temperatures in different rooms in your building. This happens because if the air vents in a room are clogged, the air conditioner can’t cool that room effectively. Another common sign of a clogged air duct is dust buildup in the vents. You can also look for sagging or disconnection of the air ducts.
An AC professional can inspect your air ducts for any problems. They might recommend a cleaning service. It’s important to clean the ducts often, as dirt can cause damage to the system and cause blockages.
In some cases, a clogged vent might be easy to fix. Make sure furniture, wall hangings or holiday decorations aren’t blocking the air vent. It’s also a good idea to vacuum your vents periodically to remove any dirt that might have built up.
More serious issues might require a professional to handle. Those include air leaks, loose insulation and pests or creatures in the ductwork. Leaking ducts can significantly reduce efficiency, resulting in higher energy bills. You can check the ductwork yourself by shining a flashlight on it. The best place to look for leaks is around the joints where two ducts meet. If you spot any cracks or holes, call an AC technician immediately. They will recommend the most effective method for repair.
The compressor is one of the most crucial parts of your AC system. It is designed to compress refrigerant gas into high pressure, allowing cool air circulation throughout your home. If the compressor is damaged, the entire system suffers as a result. If you notice signs of a compressor problem, it is important to contact an HVAC expert as soon as possible for proper diagnosis and repair.
One common sign of a defective compressor is an inability to cool your home. You may turn down your thermostat to a lower setting and still not feel comfortable. If this happens, it is likely that the compressor clutch has stuck in the “on” position, preventing it from engaging the compressor. A technician will be able to replace the compressor clutch and ensure it functions properly.
Another common sign of a damaged compressor is squeal or grinding noises coming from the unit. This sound is produced when the compressor bearing wears out or seizes up, causing metal-on-metal contact. Normally, the lubrication in the compressor helps prevent this from happening. However, if the lubrication leaks out, it can cause the pistons to strike against the valve plate. This can produce a high-pitched squeal that sounds much like the grinding of a nail in a hammer.
A malfunctioning compressor can also lead to overheating, especially if the compressor is working hard to meet the demands of your system. Overheating can be caused by a variety of issues, including low refrigerant, a dirty condenser coil, or faulty pressure sensors. An HVAC technician will be able to diagnose the cause and determine whether a compressor repair is necessary or if it would be more cost-effective to simply replace the unit.
Uneven cooling is a common issue that could be caused by a number of things, such as blocked vents and clogged air filters. The good news is that you can often solve this problem on your own.
Start by checking your home for any furniture or dust buildup that may be blocking vents and registers from allowing cool air to flow freely. You can also loosen any dirt and debris by vacuuming the vents. Additionally, if you have a single story home with multiple floors, you can partially close the first floor vents to redirect airflow and help alleviate any pressure that would otherwise build up within your system.
Dirty air filters are another common cause of uneven home cooling. Over time, dust, dirt, and other allergens clog the filter, restricting airflow and reducing efficiency. To prevent this, you should change your air filters every three to four months or more frequently depending on the brand and model of your system.
Leaking ducts are another major reason for uneven home cooling. The leaking ducts allow cool air to escape and warm air to enter the house, which causes your system to work harder than necessary. If you suspect your ducts are leaking, it’s best to call an HVAC professional to get them sealed before it gets any worse.
In some cases, uneven cooling is simply a sign that your AC system is nearing the end of its lifespan. If you notice a significant decline in cooling capacity as the summer wears on, it may be time to consider a new system installation. Whether you need a quick repair, a replacement system, or some combination of both, an experienced HVAC contractor can help.