• Strange Noises Your AC Unit Makes and When You Should Be Concerned

    During the summer, you probably rely on your air conditioner to keep your home cool and comfortable. Most of the time, it hums along in the background, providing you with cool air without giving you much trouble. If it starts making unusual noises, however, it can be very off-putting. How do you know if a noise is normal, or if it’s something that requires professional attention?

    Air conditioners often make some strange sounds. The important thing is to make note of the type of sounds you’re hearing because different noises mean different issues. Do any of the following descriptors seem familiar?

    • Squealing: Typically, if your HVAC unit is making a high-pitched squealing noise, it’s either the belt connecting the motor to the blower or the bearings on the motor of your condenser fan. Newer units don’t usually have a belt, but if your unit is older and you’re hearing the sound both inside and outside your home, the belt is probably the problem. It may need to be replaced, or it may just need lubricant. Even if it’s as simple as a lubricant, it’s not a bad idea to go ahead and replace it, because when the belt breaks, the air conditioner stops blowing. With a newer unit, squealing is probably caused by the condenser fan motor’s bearings. Direct-drive motors don’t use a belt, but bad bearings can cause squealing and grinding from the outdoor unit. When this happens, the motor probably needs to be replaced. Note: if your air conditioner always makes a squealing sound when it first starts up, but the sound stops after a little while, it’s probably not actually a problem.
    • Buzzing: Loud buzzing noises coming from the air conditioner are usually bad news. The issue may be loose parts, missing or broken isolation feet, leaking refrigerant, or a compressor that’s malfunctioning, but whatever it is, it indicates a need for repair. If one part goes bad, it can put stress on the rest of the system, so it’s important to have repairs made as soon as you know something is wrong. Buzzing may mean that the rubber feet at the base of your air conditioner have begun to disintegrate or crack, causing the compressor to become out of balance, which creates the buzzing sound. It may also mean that the refrigerant has begun to leak, which can cause your AC to actually freeze up and stop working. On the other hand, the buzzing may be the result of an electrical problem or a malfunctioning compressor. It could also be due to debris in the unit, either indoors or outdoors, loose parts, copper lines rubbing against something, an air filter in need of changing, or a condenser coil that needs cleaning.
    • Chattering: Whether or not this is serious can’t really be determined just by listening. It could mean that your HVAC is on the way out, and the parts are starting to loosen. On the other hand, it could just mean that twigs or leaves have clogged your system. The first thing to do if you hear a rattling, chattering sound is to check for loose screws in the casing of your unit, then clean the condenser coils and change the air filter.
    • Whacking: This sound is often more annoying than it is serious. It probably means that there’s debris lodged in your motor blades, and it’s time to clean it out before it leads to bigger issues.
    • Clicking: It’s normal to hear clicking at start-up or shutdown of your system, but if the clicking keeps going, it could be a sign of a defective control or a thermostat that’s about to go bad. As with any electrical issue, it’s important to deal with It as soon as possible.
    • Humming: When your air conditioner is humming, you should probably have your unit checked out by a professional. It may not be a serious problem, but it could indicate loose parts that can lead to a more serious issue, or it could indicate electrical problems.
      Clanking or Rattling: This probably means that a part inside your air conditioner is loose, out of balance, or misaligned. Do not ignore this kind of sound, because there’s a significant chance that these out-of-whack parts can lead to bigger problems.
    • Thumping or Banging: When the noise in your air conditioning unit moves beyond rattling and clanking and on to thumping or banging, it means that something serious is amiss. Most likely, a broken part has come loose and is being thrown around your unit. If that’s the case, it must be repaired quickly, before the loose part causes damage to the rest of your system. Thumping and banging can also mean your compressor needs to be replaced.
    • Screaming: If your air conditioner starts screaming, turn it off immediately and call in a professional. A screaming sound can mean a refrigerant leak, which may be harmful to your family’s health, or high pressure inside your compressor, which is an extremely dangerous situation. In fact, your compressor may turn off on its own as a safety measure.

    It’s important to know who to call for repair, and it’s also smart to have annual maintenance, to prevent these repairs from becoming necessary in the first place. If you need to find a professional to check your HVAC, or you’re in the market for air duct cleaning, repair, and replacement services in Tampa, St. Petersburg and the surrounding area, please feel free to call Air Rescue at (813) 375-9982. Since 1946, our family-owned business has been providing superior service at unbeatable prices, offering heat and air conditioning repair services, new HVAC system installations, and more for homes and businesses. The service team at Air Rescue Air Conditioning consists of 75 expertly trained and licensed technicians, who work quickly and efficiently. Our service and pricing guarantee ensures that we always arrive on time, offer you the lowest price in the industry, and leave you 100% satisfied. Schedule your service visit today, and we’re confident that you’ll make us our HVAC company for life.

  • Smells Your AC Unit Makes and When You Should Be Concerned

    Most of the time, your air conditioning unit blows air into your home that you probably don’t even notice. It just flows through your house unobtrusively, keeping you comfortable without being noticeable. Sometimes, though, you turn on your air conditioner and an unpleasant odor fills your home. It might smell like dirty gym socks, it might resemble exhaust fumes or the air in your home might suddenly smell like rotten eggs. Should you be concerned? If foul-smelling air comes out of your HVAC unit, is it dangerous?

    • Dirty sock syndrome is no laughing matter. It may sound like a funny thing to call an air conditioning issue, but it is actually a term used in the HVAC industry. What’s more, in some situations it can be dangerous. It happens when a foul, moldy smelling odor comes from your air conditioner, and it’s caused by mold, mildew, and bacteria on the evaporator coil. This is especially common in warm climates, where it’s not unusual for it to be hot enough to run the air conditioner during the day, and cool enough to run the heat at night. Heat mixes with dust and moisture inside the air conditioning unit, causing mold and mildew, which creates that dirty, musty smell. To combat this problem, make sure the drainage pans are empty, replace your air conditioning filter, clean your condenser coils, and clear any blocked drainage lines. If the smell persists, call in a professional. If mold continues to grow inside your HVAC unit, it can cause health risks to you and your family. You can often prevent dirty sock syndrome by using high-quality air conditioning filters and a UV air purifier.

    • Sometimes, your air conditioner may smell like exhaust fumes. Why would that happen, when your air conditioner is not powered by gas? The answer is simple: fluids in the engine and in other parts of your air conditioner can leak out and cause an odor that resembles exhaust fumes. The only thing to do in this situation is to call for professional assistance.
    • A gun powder smell is also something you might find mysterious. This usually indicates an electrical problem, like a fan motor or circuit board that’s shorted out. Keeping your HVAC unit in good repair can prevent this problem, but if you smell something that smells like gun powder, call an HVAC contractor.

    • Like the gun powder smell, a burning smell can mean electrical issues. It could be a mechanical problem with the fan or compressor, it might be a wiring issue, or it may be a failure of an electrical component, but whatever it is, it’s not healthy for you to breathe in burning odors. Sometimes, it may not be serious: if it only happens when you first start it up, it could just be dust burning off of your unit. If the smell persists, though, don’t try to repair it yourself. it’s best left to a professional because fixing a problem with the motor or wiring can lead to injury if you don’t know what you’re doing.

    • A skunk smell usually indicates a gas leak in the system. Methyl mercaptan is a gas that smells like a skunk’s spray, and when it gets into your ductwork it can cause this smell to enter your home. If this happens, evacuate your home immediately, and call your air conditioning repair company, because this is a dangerous gas and requires immediate attention.

    • Rotten egg smell may mean something has died. Often, birds or rodents get into air ducts in the winter, and if they die and begin to decompose it will lead to a horrible odor in your home. If your home smells like rotten eggs, your ducts need to be professionally cleaned. Another source of rotten egg smell is a natural gas leak. In either case, it’s smart to call in a professional HVAC contractor immediately.

    • Mold and mildew have their own distinctive smell. A moldy odor in your home usually means that mildew or fungus have started growing in or near the air conditioning unit. Because mold thrives in moist areas, it makes sense that it would grow in HVAC units that aren’t draining properly. What’s more, dirty filters often five off the scent of mildew. If you smell a moldy smell, change your filter. If the odor persists, call in a professionally trained HVAC technician.

    Of course, bad smells are not the only indication that something is amiss with your air conditioning unit. Various sounds can indicate a problem with your HVAC, as can excess water or other liquids leaking from the system. One way to get ahead of these issues is to have annual maintenance performed on your system, but if you find yourself with an air conditioning system that doesn’t smell, sound, or perform the way it should, it’s time to call in an HVAC professional.

    If you need to find a professional to check your HVAC, or you’re in the market for air duct cleaning, repair, and replacement services in Tampa, St. Petersburg and the surrounding area, please feel free to call Air Rescue at (813) 375-9982. Since 1946, our family-owned business has been providing superior service at unbeatable prices, offering heat and air conditioning repair services, new HVAC system installations, and more for homes and businesses. The service team at Air Rescue Air Conditioning consists of 75 expertly trained and licensed technicians, who work quickly and efficiently. Our service and pricing guarantee ensures that we always arrive on time, offer you the lowest price in the industry, and leave you 100% satisfied. Schedule your service visit today, and we’re confident that you’ll make us our HVAC company for life.

  • Why Your AC Blows Warm Air

    Your air conditioning unit has one job: to blow cold air. When it suddenly stops doing that, it’s not just uncomfortable, it’s downright annoying. What would cause an air conditioner to blow warm air? Is it something that’s easy to rectify, or do you need to call in a professional to fix it?


    The first thing to check is your thermostat. If your thermostat has accidentally been set to heat, it will definitely cause warm air to blow from the vents. On the other hand, even if your system is set to cool and not heat, if it’s turned to “on” instead of “auto”, it means that your system will be blowing air all the time, whether or not the air conditioner is actively cooling that air. It’s better to keep it on the “auto” setting so that the system will run more efficiently.

    If the thermostat isn’t the issue, something may need cleaning. Have you been changing your air filters as often as you should? Most filters should be changed monthly, and if you don’t keep up with that small maintenance step, the filter can become dirty and clogged. This will block the air circulation in your system, which could cause it to blow warm air. Another component that may require cleaning is the evaporator coils. You can clean these yourself, by turning off your AC, removing the outer panel, and cleaning the coils with compressed air, a brush, mild detergent, or a commercial cleaner. On the other hand, it may be easier to call in a professional to do the job.

    Don’t forget that part of your HVAC system is outside. If the outside condenser unit isn’t properly maintained, it may be causing the problem. Go look at it and see if something is blocking the condenser coil’s air flow, like dirt or debris. It’s important to maintain the outside unit, cleaning the condenser coils during the summer as often as necessary. Another problem that can occur with the outside unit is a loss of power. Even if the indoor part of the HVAC is working, if the outside unit has lost power, the air won’t be cold. Check to see if a fuse has blown or a circuit breaker has been tripped, and call a professional immediately if this is the case. It could indicate a serious problem with your air conditioner.

    Electrical issues can be a problem. Running an air conditioning unit requires a lot of power. If any part of your unit isn’t receiving electricity, the whole unit can malfunction. If you suspect an electrical problem, call for a repair immediately.

    Your ducts may also be causing the problem. Sometimes, ductwork gets knocked out of place and becomes disconnected. When that happens, it’s no longer sealed, and it can let hot air into your house. Call a professional HVAC technician, to ascertain whether your ducts need to be repaired or replaced.

    Your system may need refrigerant/Freon. The way that your air conditioning system cools the air is by moving refrigerant, usually Freon. If there’s a leak that’s allowing this refrigerant to escape, the AC will stop blowing cold air and start blowing warm air. Other signs of leaking refrigerant include ice forming on your AC unit, and a buzzing or screaming sound. If you suspect you have a Freon leak, call for professional assistance immediately, as refrigerant can be harmful to your family’s health.

    Of course, the best way to ensure that none of these problems disrupt your summer air conditioning is to keep your system in good repair through regular maintenance. As already discussed, part of this is keeping your outside unit free of debris and changing your air filters regularly. Another big piece of the puzzle, though, is professional preventative maintenance. Each spring, before you crank up your system for the first time in the summer, have an HVAC professional come out to check your unit for problems and make sure everything is in good working order.

    During this maintenance visit, the HVAC technician will inspect the belts, thermostat, and refrigerants, and check for duct leakage. He or she will also perform services like blowing out the lines and checking the safety controls. The technician will tighten electrical connections, lubricate the moving parts, and check and inspect the condensate drain. In addition, the evaporator and condenser air conditioning coils will be cleaned to help the system work more effectively. Any adjustments that need to be made to your system to help it work efficiently will be done, and parts that are preventing it from working the way it should will be replaced. Your HVAC professional can also advise you on any other work that should be done, such as cleaning out the air ducts. If your system needs an upgrade, your technician can offer advice on that as well.

    If you need to find a professional to check your HVAC, or you’re in the market for air duct cleaning, repair, and replacement services in Tampa, St. Petersburg and the surrounding area, please feel free to call Air Rescue at (813) 375-9982. Since 1946, our family-owned business has been providing superior service at unbeatable prices, offering heat and air conditioning repair services, new HVAC system installations, and more for homes and businesses. The service team at Air Rescue Air Conditioning consists of 75 expertly trained and licensed technicians, who work quickly and efficiently. Our service and pricing guarantee ensures that we always arrive on time, offer you the lowest price in the industry, and leave you 100% satisfied. Schedule your service visit today, and we’re confident that you’ll make us our HVAC company for life.

  • Tips for Choosing the Right Air Conditioner

    There are a lot of factors when choosing your next air conditioning installation in Tampa. You have to think about financial benefits each unit can bring you in the form of energy efficiency, but you also need to know it can get the job done when air conditioning your home. Here are a few tips to get you started.

    Air-Conditioner

    Determine Your Square Footage

    Before you even start to look at air conditioner brands or different ratings, you should know the square footage of your home. Keep in mind that you should only get the measurements for the areas you want cooled. For example, you should not include the garage or an attached shop area, unless they have been converted to include cooling. After you have you found the square footage of your home, then you can start looking at various ratings, which include British Thermal Units (BTUs) and Seasonal Energy Efficiency Ratio (SEER).

    Find the Correct Cooling Capacity

    With the square footage, you can now look to the cooling capacity of various air conditioner units. Cooling capacity is measured by BTUs, and it measures a system’s ability to remove heat from the area. As air conditioners remove hot air, they are leaving cool air in its place. The amounts of BTUs a unit has will determine how big of a space it can cool. For example, a small house measured at 1,200 sq. ft. will need a unit with 21,000 BTUs. A large home at 2,500 sq. ft. will need a unit with 34,000 BTUs.

    Consider the Unit’s Energy Efficiency

    Whether you are replacing a faulty air conditioner or simply upgrading, you should always be looking for the energy efficient models. The United States Environmental Protection Agency and the United States Department of Energy have the SEER, or EER, rating on every air conditioner available. This rating system states how efficient the unit is based on its cooling capacity. When looking for a new unit, you want a high SEER number. The higher the number is, the more potential you have to save on future energy bills.

  • Understanding How Heat Pumps Work

    If you live in a part of the country that gets very cold in the winter and very hot in the summer, it’s probably best for you to have a dedicated heating system like a furnace and a cooling system like an air conditioner in your home. However, if you live in a moderate climate, a heat pump might be a better choice, as it can both heat and cool your home very efficiently. A furnace and AC contractor serving St. Petersburg can install a heat pump for you and show you the benefits of owning one. Here’s how a heat pump works.

    air conditioner

    Heating Your Home

    Even when the air outside of your home is cold, there is heat energy trapped inside of it. A heat pump works to heat your home by pulling this air into your house, extracting the heat from it through the use of refrigerant, and then transferring the heat into the air in your home . A heat pump doesn’t actually generate heat on its own. Rather, it takes heat that already exists and moves it throughout your home, which is what makes heat pumps significantly more energy efficient than furnaces.

    Cooling Your Home

    While you might hear the word “heat” in heat pump and think that it is used solely to heat homes, a heat pump can also be used to cool your house. When it gets warm out and you want to cool your home, a heat pump will act like an air conditioner in that it will take warm air from your home and transfer it outside. By reversing your heat pump’s heating process, you can keep your home cool.

    Why a Heat Pump Might Be Right for You

    Heat pumps aren’t ideal in extremely cold or hot situations, but they will control the climate inside of a home perfectly if you live in a place like Tampa. By utilizing your heat pump, you can heat or cool your home to the right temperature at all times for a fraction of the cost of other heating and cooling options.

  • Signs Your AC Unit Needs a Tune Up

    Tampa AC Repair Most AC systems give off warning signs when there is a problem. Once you know what those signs are, you can call a professional for a tune up. Left unchecked many warning signs can turn into an expensive break down. Most AC units break down during the coldest days of the year when the system is working its hardest. Homeowners are in the best position to detect a problem. They are accustomed to their units particular sights, sounds and smells. Anything out of the ordinary is an indication your unit may need tuned up.

    Airflow is vital to cooling your home. If a reduction in airflow from the vents is detected you may have a blockage in the ductwork or clogged filters. A change in the air temperature coming from your vents is the easiest to spot but can be caused from a variety of problems. Low refrigerant, the thermostat or an issue with the air compressor is usually the culprit. Water that starts collecting near the unit is an indication of a blocked or broken drainpipe. If ice forms on the coils, they may be dirty or your refrigerant may be low.

    Strange smells coming from the unit or the vents is another warning sign. Smells can originate from a mold invasion, burned wires or burned insulation. It is possible a motorized part in your unit has burned out. However, if this occurs, your unit will most likely quit working. Sound is an important factor. Anytime your AC system sounds differently something has caused the change. It may be broken parts, loose fittings, loose ductwork or a number of other issues.

    When a unit runs too often, too seldom or there is an unexplained rise in utility costs the AC unit may be at fault. Manufacturers make air conditioning units meant for long-term use, but eventually a problem will develop. Calling a HVAC technician when you first notice a change in its operation will save you money and further extend the life of the unit. The ideal time to call a technician is before any changes occur at all.

    Is the AC unit in your Tampa home in need of a tune up? Call Air Rescue at 888-638-3792 and schedule a service call today!

  • Signs Your AC Unit Needs Maintenance

    Tampa AC Repair Air conditioners can be life-savers; especially when the weather turns hot and humid. However, there are signs your AC may need maintenance such as when it stops cooling your home. You may notice that your AC is not blowing out cooling air at all or it may blowing out air that is not cool at all. It is important to note that if you notice any reduction in coolness, it should be taken care of as soon as possible. Often when this happens, the compressor may be the problem and this issue should be reported soon before a more serious problem occurs.

    Another sign that your AC needs maintenance is if you notice any odd smells coming from your vents or unit. These odors are often pungent and unpleasant. It is important to note that these odors mean that the wire insulation has burned out. Also, if you notice musty smells coming from your unit, it can be an indication of mold growing inside your unit. If you notice any musty smells, talk with an AC specialist, soon.

    Another indication that you’re AC needs attention is when damage occurs to vents. Damaged vents will cause you’re AC not to work properly. Often vents are damaged when they are bumped or if moisture has accumulated and is causing other problems.

    Keep in mind that if you have noticed a sudden increase in your utility bills, that may also be an indication that something is wrong with your AC. What this means is that your AC is not running as effectively and efficiently as it should.

    To conclude, air conditioners are wonderful and much needed but when they need repair, call an AC specialist, soon. He or she can examine and diagnose your AC and then give your AC the maintenance it needs.

    Is the AC unit in your Tampa home acting up? Call Air Rescue at 888-638-3792 and schedule a service call today!

  • Familiar Problems With Air Conditioning Systems

    Just like servicing your car, your air conditioning system needs to be serviced too, just not as often as a vehicle. 93% of all breakdowns can be prevented by having routine maintenance done on your system. This will keep it running well and efficient. Below are a few of the most common problems people experience with their air conditioning system.

    • Inadequate maintenance- If your air conditioners coils and filters are dirty, the system will not perform right and may cause the compressor or fans to fail sooner than expected. Dirty filters are a common problem, this can be fixed easily by replacing the old one with a new filter. Changing filters regularly are important in keeping your drain lines clean. Filters that are dirty let dust and other particles in the system, all the particles will build up and can block that drainage system.
    • Drainage Difficulties- It can be very humid in Florida, this humidity can cause the drain to become clogged and not drain properly. Be sure to check the drain when the humidity level is high. Some drains may not drain properly if it is not mounted level. Clogged drains are one of the most common problems with an AC system. When your AC cools your home, it makes condensation. This moisture travels through a drainage system and that drain must not be clogged. If this does become clogged the water will fill up the drain pan and when it overflows it can damage your home. The drain must be properly placed to work correctly.
    • Electric Control Breakdown- The controls to the fan and the compressor can wear out, especially when your AC system turns on and off many times throughout the day. This also happens when your air conditioning system is too big for your home. Wires and terminals can also corrode, electrical connections should be analyzed.
    • Refrigerant Leaks- If your AC system has low refrigerant, it was not filled properly at installation or it has a leak. If your system has a refrigerant leak, adding refrigerant will not fix the problem. A trained professional should fix your leak, test and add the proper amount of refrigerant. Performance and efficiency will be at the highest level when the refrigerant is matched correctly will the manufacturer’s specifications. These leaks can be bad for the environment.