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Category: Air Conditioning Service pg. 5

Category: Air Conditioning Service pg. 5

Archive for the ‘Air Conditioning Service’ Category

Sounds That Can Mean It’s Time for Air Conditioning Repair

Friday, September 5th, 2014

One of the easiest ways to tell that it’s time to call an expert for air conditioning repairs is if you hear unusual sounds from your air conditioner. You’re used to the sounds of the compressor starting outside and the familiar humming noise indoors, but anything strange can signal trouble. Don’t ignore the warning signs of a failing system. Even a small repair can cause big problems for other parts of your air conditioner.

Here Are Some Troubling Sounds to Listen for That Indicate It’s Time to Repair Your Air Conditioner

  • Hissing: A hissing noise may indicate a refrigerant leak. Refrigerant is a chemical blend that continuously cycles through your system whenever it is turned on. Refrigerant actually absorbs the heat from your home, which is how the air is cooled. And while the heat dissipates outdoors, the refrigerant will not—unless there is a leak. Without refrigerant, your home may never reach the desired temperature, and other important components of your system may suffer as well.
  • Banging/Clanking: A loud banging or clanking noise can have many different sources. A loose, bent, or otherwise damaged fan blade from the indoor or outdoor fan may bang against the inside of the unit, causing wear and tear to your system and inhibiting the airflow that is necessary for heat exchange. The banging noise may also indicate compressor damage, which requires the immediate attention of an air conditioning technician.
  • Buzzing: A buzzing sound often indicates an electrical problem, such as a problem with the wiring, the motors, or a capacitor. A loose contactor may affect the capacitor, so that the motors in your system do not receive enough electricity to operate properly. You should not attempt to diagnose or fix an electrical issue on your own.

While this list can give you a good indication of what a noise may mean in your air conditioning system, you should allow a professional to pinpoint the problem. Do you need air conditioning repair service in Mesa? The experts at Johns Refrigeration are trained to recognize repair needs and find the source of the problem to get your air conditioner running like normal. Give us a call today!

Why You Shouldn’t be a Thermostat Jiggler

Thursday, September 4th, 2014

Thermostat jigglers, you know who you are. You’re the ones who change the thermostat temperature whenever you feel a little too hot or too cold. (more…)

When is it okay to turn A/C off?

Thursday, August 28th, 2014

We are often asked when is it okay to turn A/C off?

The answer is when the summer is over. (more…)

3 Problems Caused by Leaky Refrigerant

Friday, August 22nd, 2014

One of the essential components that makes an air conditioner work is refrigerant, a chemical blend that courses through the cooling system and changes from gas to liquid and back again. As the refrigerant absorbs and releases heat, it moves heat from the inside of a home and deposits it outside. This is calledheat exchange, and it’s the secret to how electro-mechanical air conditioning works.

During heat exchange, the amount of refrigerant inside an AC doesn’t lower. As long as the system is working normally, the air conditioner will not lose of its charge of refrigerant. However, the charge can drop if leaks develop along the refrigerant lines or inside the compressor. Loss of refrigerant is a serious repair problem that will impair an AC and possibly cause it to break down permanently if not dealt with.

If you notice a loss of cooling from your AC or hear an unusual hissing noise coming from its cabinets, call Johns Refrigeration right away. Since 1970, we’ve handled air conditioning repair in Scottsdale, AZ that keeps customers coming back to us.

Here are the troubles you may encounter with your AC due to leaking refrigerant:

Loss of Cooling/Rise in Bills

With less refrigerant inside an air conditioner, the balance of heat exchange will weaken. The indoor evaporator coil will be able to absorb less heat, and the outdoor condenser coil will be able to exhaust less heat. The air conditioner as a whole will start to lose its cooling power, and consequently it will strain harder to reach its target temperature, leading to a spike in electrical bills.

Ice along the Evaporator Coil

One of the major warning signs of leaking refrigerant is ice and frost developing along the indoor coil. Although it might seem strange that losing refrigerant would cause ice to appear, the reason this happens is that the remaining refrigerant in the coil doesn’t warm up enough, and the cold along the coil will start to freeze the water vapor in the air. This creates a downward spiral, since ice will further prevent the coil from absorbing heat, leading to more ice. Eventually, a solid ice block will form over the coil and prevent any heat exchange from occurring.

A Burnt-Out Compressor

This is the most serious consequence of a loss of refrigerant: if the compressor burns out, usually the entire air conditioner will need replacement. The danger to the compressor is that a reduced level of refrigerant inside it will cause it to overheat, eventually melting its wiring and ruining it. For this reason, you cannot delay when you notice any sign of lowered refrigerant.

One way to avoid the troubles from refrigerant leaks is to enroll your AC in a maintenance program. During a yearly inspection, a technician will check the refrigerant level to make sure that it hasn’t lost charge. If there are leaks, the technicians will locate and seal them, and then recharge the refrigerant to its proper level.

When you need air conditioning repairs in Scottsdale, call up the experienced team at Johns Refrigeration. We will have your cooling restored in no time.

Can I Run My AC with Low Refrigerant?

Friday, August 15th, 2014

The refrigerant in your air conditioning system facilitates the transfer of heat from your indoors to the outdoors. Every air conditioner is manufactured to operate with a specific amount of refrigerant. This specific amount is added to your system during installation, and decreases only if a leak occurs in the system. When an AC’s refrigerant level is off – either too high or too low – system-wide problems will develop that can affect many different aspects of your cooling. It may take a while to notice these problems, but one thing to know about refrigerant leaks is they don’t go away on their own. No one wants to think about needing air conditioning repairs during August, but when it comes to low refrigerant, it’s necessary to call professionals, like the ones here at John’s Refrigeration.

Problems Caused by Low Refrigerant

There are multiple problems that can be caused by low refrigerant:

  • Decrease in cool air – as we mentioned above, refrigerant facilitates the transfer of heat in the air conditioning cycle. When this process becomes unbalanced due to a leak, the refrigerant can stay too warm, disabling it from achieving the cooling needed for your home.
  • Ice formation – when the refrigerant level is too low, the warm parts of your system stay too warm, and the cool parts get too cold; this creates condensation that, because of the cold parts, freezes over and forms ice. Scraping the ice off does not repair this problem; it requires professional repair for the refrigerant leak.
  • Compressor problems – your compressor is made to operate with the exact amount of refrigerant needed for your system. When too little refrigerant enters the compressor, it can malfunction in a few ways, including overheating and breakdown. Compressors are complex to repair and even more expensive to replace, so it’s best not to risk this by running your AC with low refrigerant.

Refrigerant Repairs Need Repair

Refrigerant leaks can throw off your entire system, and it’s important to hire professionals to fix them. Why? It can be difficult to find a refrigerant leak, and you need to be certified to handle refrigerant. If you suspect you may have a refrigerant leak and require repairs, call John’s Refrigeration to set up your air conditioning repair service in Phoenix today.

3 Common Compressor Repairs

Friday, August 8th, 2014

There are 3 main components to your air conditioner: the condenser, the evaporator, and the compressor. Each is important to the function of your air conditioner, and each has different responsibilities. There are a few common problems that occur with compressors that can create a need for air conditioning repairs. One thing to keep in mind is that the compressor is a complex component, so you should always call a professional like the ones at John’s Refrigeration to conduct AC repairs in Queen Creek.

Here’s a List of Common Compressor Problems

  • Motor issues – if your air conditioner is short-cycling, it can cause your compressor to overheat or even burnout. This can also happen if something like a faulty thermostat is constantly triggering your system to turn on and off. Motors can sometimes be repaired, but in cases of burnout, they usually need to be replaced.
  • Low refrigerant – your compressor isn’t the cause of low refrigerant, but it can suffer problems when this happens. Why? Your AC runs on a specific level of refrigerant; when the level is lower than it should be, the entire heat release/cooling process is thrown out of balance. This is a problem for your compressor because the refrigerant needs to be in certain states – gas or liquid – when it enters different parts of your system. When it comes to your compressor, the refrigerant needs to be a cool gas, but sometimes, when the refrigerant is low, it may enter as a liquid. Your compressor wasn’t made to work with liquid refrigerant, and will most likely break down in this scenario. A second problem with low refrigerant is that too little refrigerant is being pressurized, which can cause your compressor to overheat.
  • Electrical issues – wires throughout your system can corrode, fray or disconnect, and this includes the parts in your compressor. One common sign of an electrical issue is “hard starting” – a noticeable stuttering when the compressor motor turns on.

Your compressor is a complex component, which is why it’s important to call a professional when you need compressor repairs for your air conditioning. John’s Refrigeration has been helping customers in Queen Creek, AZ since 1970, so if you have a problem with your AC’s compressor, call us today!

What Are The Benefits Of Adding A Humidifier To My Air Conditioning System?

Friday, August 1st, 2014

Our summers here in Mesa bring the heat – and a lot of it. As most people know, we have a very dry heat, which in some ways is nicer to deal with than more tropical heat. However, just as excess humidity can cause problems, so, too, can a serious lack of it. One of the best ways to raise the humidity in your home to a healthy level is with a whole-home humidifier. Since 1970, John’s Refrigeration has helped customers in Mesa with their air conditioning needs, including humidity control.

How Can Low Humidity Create Problems in My Home?

There are several ways low humidity can cause problems in your home:

  • Home damage – lack of humidity can cause wood products, such as your flooring and furniture, to dry out and splinter; it can also cause paint to peel and crack, and high levels of static electricity.
  • Decrease in health – when the air in your home is too dry, it can dry out the mucous membranes in your body. You need these membranes to be healthy in order to fight off bacteria and viruses; when they dry out, you may be more prone to infection. In addition, very dry air can exacerbate allergic reactions and chronic respiratory disorders like asthma.
  • Temperature discomfort – little humidity in your indoor air can make the temperature feel colder than it really is.
  • Bloody noses, etc. – lastly, very dry air in your home can cause bloody noses, dry mouth and eyes, sore throats and dried out, itchy skin.

The Benefits of a Whole-Home Humidifier

A whole-home humidifier brings a healthy level of moisture to your home that can’t really be achieved with a room humidifier. By adding an appropriate amount of moisture to the air through your air conditioning system, you can avoid many of the problems listed above. If you’ve seen the signs of insufficient humidity in your home, schedule air conditioning service in Mesa, AZ with the experts who can help: John’s Refrigeration.

What is the Condensate Pan?

Friday, July 25th, 2014

When you have a glass of cold water on a hot day, condensation forms outside of the glass as the water comes into contact with the warm outside air. Similarly, the evaporator coil of your air conditioning system collects condensation that needs somewhere to go as it forms. This is where the condensate pan comes in, an important component of the air conditioning and dehumidifying process.

Your split system air conditioner has two major components, the indoor evaporator unit and the outdoor condenser unit. As refrigerant cycles throughout your home, heat is absorbed at the evaporator coil and released at the condenser coil. Cool air is supplied to your home as a fan blows warm air over the cool evaporator coil. But this process not only cools your home; it also removes some humidity from the air to keep you comfortable. If there is moisture in the air, it collects on the evaporator as condensation when warm air blows over the cool coil.

Of course, this moisture needs somewhere to go. Condensation must drain quickly so that it does not overflow or back up into your system. First, it flows into the condensate pan, a shallow tray that collects water before it moves to the condensate drain line. The water then drains either outdoors or directly into a drain pipe.

One common air conditioning problem often caused by the condensate pan is water leaks. If your air conditioner is leaking it is most likely due to the condensate pan or drain. There may be cracks or tears in the pan, which would then need replacement. Alternatively, the drain line may clog, which means water backs up into your AC or overflows into your home. An AC technician can repair these leaks and check for other damages to your system.

Air conditioning repair and maintenance technicians are the best people to call when you run into leaks or other problems with your air conditioner. Call Johns Refrigeration for more information or to schedule air conditioning service in Mesa.

How does a dust storm affect my air conditioning?

Wednesday, July 23rd, 2014

The official monsoon season started in Arizona on June 15th and lasts through September. Often, along with rain, comes a dust storm; the worst of which is referred to as a haboob. In addition to causingallergies that drain your health, these storms can take a drain on your air conditioning unit.

How does a dust storm affect my air conditioning?

Much like our bodies, an air conditioner runs slower when there is dust and debris in the air. When the air is heavier, we get more tired doing our everyday tasks. We feel sluggish and need to exert more to accomplish the same activity. It’s the same for your air conditioning.

A typical monsoon storm begins with heavy winds, bringing dust across the Valley and into your home. Dirt enters the air conditioning unit, making the coil dirty, which reduces the unit’s performance. That means the unit is working harder and using more electricity to bring your home to the desired cool temperature. As a result, you will have a higher utility bill or may need additional maintenance to keep the unit clear of dust and debris.

How can I keep my air conditioning unit healthy during a dust storm?

Improving indoor air quality isn’t just for monsoon; it needs to happen throughout the year. At John’s Refrigeration we can:

  • Identify areas of the HVAC system where there are leaks that are allowing dust, pollen, and other contaminants into the home.
  • Install an electrostatic air filter that attracts and holds airborne particles so they do not enter your home or your lungs.
  • Clear the air conditioning unit of debris to help it work more efficiently.

The team at John’s Refrigeration is dedicated to helping families feel comfortable in their homes, during dust storm season and throughout the year. Call us today to learn how we can help keep your air conditioning running efficiently.

How to Reduce Strain on Your Air Conditioner During a Heat Wave

Friday, July 18th, 2014

“Heat wave” is a relative term in the Valley of the Sun. Standard summer days in Tempe count as roasting heat waves for most other parts of the country. So what we might call a “heat wave” mean that it isextremely hot. Either way, we have numerous days that will place enormous stress on the cooling systems in our home, and this pressure will cause them to wear down faster, leading to repairs and a shortened service life.

But there are ways to take some of the strain off your AC during the worst of the heat. Although you will depend on your air conditioning in Tempe, AZ to help you through most of the summer, you can relive the work stress placed on it through a few basic steps and some professional assistance from an experienced AC company like Johns Refrigeration.

Here’s our advice for keeping a healthier cooling system during the days of the Anvil of the Sun.

Have Regular Maintenance from a Professional

You should have a maintenance visit from an HVAC technician annually, no matter the weather. The best time to have maintenance done is in spring, but it is never too late to schedule it during the summer. Without maintenance, your air conditioner will start to run with additional stress. This will not only raise your power bills, but will cause the air conditioner to overwork. You risk a serious breakdown during the summer each time you go without a maintenance visit that year.

Maintain a Steady, Comfortable Thermostat Settings

Thermostat control is something people rarely do well during a heat wave: they crank the thermostat down to the lowest possible setting (usually 50°F) to combat the higher temperature. However, the thermostat is not a throttle: it will not producer higher levels of cooling when set lower, it will only remain on longer to try to reach the lower temperature. This puts enormous stress on the system, and it will result in a temperature that is too low for comfort. Instead of dropping down to the lowest setting possible, set you the thermostat at around 72°F, which is comfortable for most people, and keep it there. The AC will work less and you won’t sacrifice comfort.

Reduce Extra Sources of Heat

Watch for places in your home that produce additional heat that contributes to the high outdoor temperatures. Draw the blinds over windows that face the sun. Turn off all unnecessary lights. Avoid using appliances such as washing machines, dishwashers, laundry machines during the hottest parts of the day. Keep doors and windows closed. If you have an attic, make sure that it is properly insulated, since it will become incredibly hot from sun exposure and this heat will seep down into the rest of the house.

To get started with easing the stress on your air conditioning in Tempe, AZ, call Johns Refrigeration and sign up for our Peak Performance Club. We offer two 51-point inspections each year (the second is for your heater) and many other membership benefits.

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