ServiceMax Blog: Archive for August, 2014

How Strange Noises Alert You to Air Conditioning Repair Needs

Wednesday, August 27th, 2014

Although today’s manufacturers make air conditioners with many advanced features, they have yet to design one with a perfect self-diagnosing computer that can immediately identify when they need repair and report it to homeowners. You still need to watch out for clues that your AC has developed a malfunction. Fortunately, many repair problems in an air conditioner will create a distinct and unusual sound, and you can use these noises to figure out that you need to call for professional HVAC technicians.

We’ve put together a list of some of the more common noises that malfunctioning air conditioners can make and what they might mean. You shouldn’t use this information to attempt the repair work on your own, however. Call Malek Heating & Cooling—any time of the day or night—when you require skilled air conditioning repair in Northbrook, IL. We will send a technician to your home to track that strange noise to its source and then handle the repair work.

Some Repair Warning Noises to Listen For

  • Hissing: This sound like a high-pressure gas escaping from a nozzle probably means that there is a refrigerant leak somewhere in the AC. Loss of refrigerant charge will lead to an air conditioner that cannot maintain its proper cooling level, and it may eventually cause irreparable damage to the compressor. Repair technicians will locate and seal the leak, then recharge the refrigerant to its regular level.
  • Grinding, groaning: These mechanical noises are often indicators that one or more of the motors in the system is wearing down from excess stress. This can happen because of loss of lubrication or dirt accumulating across the moving parts. Technicians can attempt to repair the motor, or in the case of a burnt-out motor, replace it.
  • Clicking: If you hear a clicking sound as the AC tries to start, you may have dying capacitors. The capacitors store and send charge to the motors to start them running and keep them running. When capacitors start to fail, the air conditioner will “hard start” and drain excess power. Technicians will replace the bad capacitors or install a hard-start kit to overcome the problem.
  • Clanging, striking: This often points toward a damaged fan. Bent fan blades will cause the fan to begin striking its outer casing, and this can lead to the damage spreading. For older air conditioners, this may indicate a snapped fan belt. (Newer ACs use direct motors instead of fan belts.)

Whatever the reason for the strange sounds, don’t let a noisy air conditioner continue to run: the problem will worsen and cause a chain reaction of other malfunctions, and the AC will drain money. Call for repairs right away.

Since 1998, the people at Malek Heating & Cooling have delivered air conditioning repair in Northbrook, IL and the rest of the Chicagoland area with fast and effective service for their ACs. Make us your first call when you hear those strange sounds rattling around inside your cooling system.

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Benefits of a Mitsubishi Ductless Mini Split System

Saturday, August 23rd, 2014

When considering a new heating and cooling system for your home, the knowledgeable technicians at Malek Heating & Cooling recommend Mitsubishi ductless mini split systems. Not only are these an affordable option but few systems have so many benefits wrapped into a small package. Like any new system, we know you’re looking for something that is energy efficient, quiet, easy to use and will make your home comfortable year round.

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What SEER Means for Your Air Conditioner

Wednesday, August 20th, 2014

Air conditioning a home through warm months and hot spells can become expensive. However, with the installation of a high-efficiency air conditioner you can reduce those steep bills to more manageable levels. The technology of cooling continues to advance each year, and with these advances comes ACs that use less power to produce greater levels of cooling.

The way you can determine the level of energy-efficiency from an air conditioning system is to check on its SEER. This technical specification will tell you how much energy the system will use and how that compares to the cooling power it produces. When you are in the market for a new AC, understanding SEER is crucial for locating the right system for you.

However, SEER isn’t the only piece of information you should know: there are many other considerations, and therefore you should always contact HVAC professionals to assist you with selecting new air conditioning in Winnetka, IL. Call Malek Heating & Cooling for the experienced technicians necessary to find the right AC for you. We’ve served the Chicagoland area since 1998.

What SEER Stands For and What It Means

The acronym SEER stands for “seasonal energy efficiency ratio.” It represents the ratio of cooling power an air conditioner produces (as measured in BTUs) to the amount of energy it consumes (in watt-hours) as measured over a whole season. A similar specification, EER (energy efficiency ratio), is measured over a single test. SEER gives you an idea of how much you can expect to pay for cooling during a whole season: the higher the number, the more efficiently the AC converts electricity into cooling, and the less expensive it is to run.

For most air conditioners, SEER falls between 14 and 20. In order for an air conditioner to qualify for the U.S. Department of Energy’s ENERGY STAR label, it must have a SEER of at least 14.5. Some high-end ACs can have 20 SEER or even greater.

Although SEER is important, you shouldn’t simply pick an air conditioner with the highest SEER available. There are more factors involved in properly and effectively cooling a home than energy-efficiency. For example, an air conditioner can have an astonishingly high SEER of 22, but if it isn’t sized right to cool your home, all its efficiency will go to waste. You want to find a balance of factors, including SEER, to locate the ideal air conditioner for your cooling needs and your budget plans.

Since you should never attempt to install a central AC on your own, make sure that you have the professional installers involved in the process from an early stage. Experts will help you select the air conditioning in Winnetka, IL that will do the all-around job you need for comfort and savings. Call Malek Heating & Cooling when you are ready to start searching for your perfect air conditioner.

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Why Ice on Your Air Conditioner Means It Needs Repairs

Wednesday, August 13th, 2014

If you notice ice on the indoor coil of your air conditioner, it may seem like a minor problem. Of course, air conditioners cool the air, so ice is to be expected from time to time, right? Not quite! Air conditioners do not actually create cool air. Instead, they cool a home by removing heat from the air as refrigerant cycles throughout the system. Ice on the evaporator coil means that something has interfered with the evaporation process and that your air conditioner may not be able to cool your home properly. Scraping the ice off the coil can seriously damage this component, and allowing it to defrost is not enough to address the source of the problem. When you notice freezing, turn off your system immediately and call a professional for air conditioning repair in Evanston, IL. You may have any of the following problems.

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