Boehmer Heating & Cooling Blog: Posts Tagged ‘air conditioning repair’

Pittsburgh, PA Air Conditioning Repair Tip: Spotting a Refrigerant Leak

Monday, July 15th, 2013

The level of refrigerant that circulates through your compressor, coils, and expansion valve is vital to the effectiveness and energy efficiency of your air conditioning system, no matter what type it is. You simply cannot expect your home to stay cooling during the summer months without the correct refrigerant charge. In today’s post, we’d like to examine this issue a bit more closely.

Because your system does not expend refrigerant during the cooling cycle, there are really only two reasons why it is low. Either it was not installed with the correct amount of refrigerant to begin with, or it has developed a leak, due to either a puncture or corrosion. Let’s take a look at a few signs indicating you may have a refrigerant leak:

  • Inadequate cooling: One of the most common indications that you have a refrigerant leak, and thus low levels of refrigerant, is inadequate cooling. If you recognize a drop-off in your system’s ability to keep your home cool, then it may not have enough refrigerant to complete the cycle effectively. .
  • Warm air: If you feel warm air coming through the ductwork and you’re calling for cooling, then you know something is not right. One of the causes behind that warm air could be low levels of refrigerant. Your condenser coils simply cannot be effective if there is not enough refrigerant. Likewise for your indoor evaporator coils, which are responsible for cooling your air.
  • Hissing sound: Do you hear a hissing sound at or near your AC components? If so, the sound you might be hearing is not air but gaseous refrigerant. Not only is this harmful to the environment, but it can be devastating to your cooling performance and energy efficiency.

Call Boehmer Heating & Cooling today should you have any issues with your AC’s refrigerant level. We can assist with all of your air conditioning repair needs in Pittsburgh, PA.

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Pittsburgh AC Question: Is it Worth it to Repair Your Air Conditioning System?

Thursday, May 16th, 2013

Knowing the difference between repair and replacement can be tricky. One question we often get from customers who are tired of paying for constant repairs, or whose AC is old, concerns whether it’s still worth it to repair their Pittsburgh air conditioning system. It’s not an easy decision and it depends on numerous factors, all of which are unique to your home and situation, as well as your budget and your cooling needs. The first step involves calling your local AC professional for advice. A consummate analysis of the state of your system should precede any major decision-making. Considering the resources required for a system replacement, you need to make a good decision, one that you and your family will be happy with for the years to come. In this post, we’d like to give you a few pointers. Call Boehmer Heating & Air Conditioning for comprehensive air conditioning services, from installation and repair to system replacement.

  • Energy efficiency: You need to think about energy efficiency if you’re considering replacement. This is where performance and energy cost intersect. Knowing what the difference is between your old and new systems’ respective energy efficiency ratios can allow you to estimate how much you might save on your energy bill every month with a new system. This is particularly important if your system is more than ten years old. Today’s systems are much more energy efficient than older systems and this can work to your advantage.
  • Performance: The decision comes down to performance, and if you’re sick and tired of paying for repairs knowing that your old system barely keeps up with your cooling needs, then you should definitely consider replacement. Not only will you avoid constant service calls, but you will also ensure the future of your home comfort. By choosing a professional technician, you’ll also be able to find a new system that exactly matches the size of your home so that your new AC will easily outperform the older system.

If you’re thinking about replacement instead of repair, but don’t know where to start, call Boehmer Heating & Air Conditioning for all of your air conditioning needs in Pittsburgh. We can help you make the right decision for your home and budget.

 

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Air Conditioning Repair in Pittsburgh: Why is My Refrigerant Low?

Monday, May 6th, 2013

As we enter the cooling season, you need to make sure that your air conditioning system is ready for the heat and humidity of the summer. Even if you haven’t yet turned it on, then do so now. Take a listen, and see if your home reaches your desired temperature. One of the common root causes of inadequate cooling is low refrigerant, which needs to be of a certain “charge” at all times in order for the AC to function effectively and efficiently. In this post, we’d like to look at the reasons why your refrigerant may be low. For superior air conditioning repair in Pittsburgh, call Boehmer Heating & Cooling today!

The refrigerant in your AC is chemically designed to undergo intense changes in temperature and pressure to facilitate the removal of heat from your home and to send cool air throughout your ducts. The compressor takes the low pressure gas from the evaporator coil and turns it into a high pressure, high temperature gas; so hot, in fact, that when this refrigerant circulates through the condenser coils, its heat dissipates into the outside air, no matter what the temperature is. The evaporator coil takes the now cool liquid refrigerant and cools the air, while the air handler sends the conditioned air back through the ductwork. If your system has too little refrigerant, then these processes will simply not be as effective, and may not work at all.

There are basically two reasons why your refrigerant is low:

  • Undercharged at installation: One of the reasons why professional installation is so important is that it very much matters what the “charge” of your refrigerant is during installation. Only a certified technician will know exactly how much refrigerant to put into your system.
  • Refrigerant leak: This is the most prevalent reason for low refrigerant. Some leaks are microscopic punctures that are hardly noticeable. Your tech has various equipment and techniques for refrigerant leak detection. Only a certified technician should ever handle refrigerant, so it is always best to call a professional if you think you have a leak.

If you’re concerned about the levels of refrigerant in your AC, call Boehmer Heating & Cooling for air conditioning repair in Pittsburgh today! 

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Pittsburgh Air Conditioning Tip: Why Hire a NATE-Certified Professional

Monday, April 29th, 2013

As the summer approaches in Pittsburgh, you may be thinking about upgrading your AC, or perhaps simply calling for some minor repairs or maintenance. It’s important that you hire a NATE-certified professional for any work done on your home cooling system. NATE stands for North American Technician Excellence. Founded in 1997, and headquartered in Arlington, VA, NATE is the largest and most widely recognized certification organization for the HVAC industry, including air conditioning installation, repair, and maintenance. NATE certification gives you confidence that the work to be done on your home is of superior quality, and that your tech has the latest skills and knowledge. For more information, or to schedule Pittsburgh air conditioning services, call Boehmer Heating & Air Conditioning today!

Let’s take a look at why you should hire a NATE-certified professional:

  • Training: NATE-certified technicians have to pass a rigorous examination, which, in combination with conscientious on-the-job training and practical application, gives them the fundamentals of safety, tools, construction, science, mathematics, measurements, and basic electrics. The AC specialization exam gives the NATE-certified tech a comprehensive test about AC plumbing (brazing, flare fittings, soldering), ductwork, electrical systems, leak detection, and measuring airflow, among other subjects.
  • Confidence: The NATE logo is a standard of excellence and consumer confidence. It helps you sift through the many AC contractors available in your area so that you can receive the best possible AC service for your home. This gives you peace of mind, so that you know your home is in good hands.
  • Up-to-date know-how: A standard NATE certification lasts 5 years. One of the reasons why NATE certification is highly prized is due to its recertification policy, which ensures that NATE AC techs are up to date on the latest technology and industry equipment. This is important. It allows you to take advantage of the latest developments in energy efficiency and cooling performance so that you can make an informed decision.

Still unconvinced? Talk to a NATE-certified professional at Boehmer Heating & Cooling for excellent Pittsburgh air conditioning services! 

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Signs of Wear and Tear on your Pittsburgh Air Conditioning System

Monday, April 15th, 2013

As we slowly make our way towards the heat and humidity of another cooling season, homeowners in the Pittsburgh area are starting up their air conditioners to make sure that they are ready when those hot days hit. When you take a look at your own AC this spring, keep an eye and an ear out for signs of wear and tear. If your system is over 10 years old, or seems to require frequent repairs, then it may be a sign your air conditioning system is in need of professional maintenance or repair. Call Boehmer Heating & Cooling for details.

  • AC short-cycles:  If your AC turns on and off frequently, then it is not completing entire cycles of circulating refrigerant through the coils and the compressor. This may lead to inadequate cooling, or it may lead to uneven cooling.  It’s a highly inefficient way for your AC to operate, and tends only to increase the general wear and tear on your system.
  • Inadequate cooling: If your AC no longer cools as it did last year, or if the air emerging from the ducts does not seem to match your desired temperature, there could be a range of problems. First, make sure your thermostat is properly calling for cooling, and also check the air filter in the air handler to make sure it’s not clogged or excessively dirty. If neither of those aspects are the problem, then it may be a result of a low level of refrigerant in your AC or an airflow problem. 
  • Strange or unusual noise: Listen to your AC. If you hear a hissing, banging, buzzing, grinding, or any sound that seems unusual, then take heed. For instance, buzzing can often indicate a serious electrical problem, while grinding can indicate dry bearings in your blower motor.

These are just a few of the signs of wear and tear on your air conditioning system. Call Boehmer Heating & Cooling for exceptional AC repair and maintenance in the Pittsburgh area. 

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Pittsburgh Air Conditioning Guide: Cooling Coil or Evaporator Coil Diagnosis & Repair

Monday, June 25th, 2012

Inside the air handler of your Pittsburgh air conditioning system is a cooling coil or evaporator coil. From a home cooling perspective, this is where the magic happens: where the actual cooling occurs. So, if there is a problem with the cooling or evaporator coil, you will notice a decrease in the performance of your AC system.

You may notice that the air flow has slowed significantly or even stopped, even though you can hear the air handler running. You may also notice that the air isn’t as cool as it used to be or should be. Aside from having a house that is not cool enough, this can also cause problems like high electricity bills or damage to other parts of the air conditioner. Use this quick guide to start diagnosing and repairing the problem.

Diagnosis

For starters, just try to get a good look at the cooling coil. Some problems are obvious enough upon visual inspection that no further diagnostics or major repair is necessary. To inspect the cooling coil on your air conditioner, first turn off the electricity at your fuse panel or breaker box. Then, locate the access panel on the air handler that can be removed to at least partially expose the coil. Refer to the manufacturer’s instructions for help.

Once you are able to see the cooling coil, look for things like:

  • Dirt and debris
  • Mold
  • Staining that indicates a refrigerant leak
  • Ice or frost
  • Damaged fins on the coil

Repair

Any of these could be the culprit that is degrading the performance of your Pittsburgh  AC system. Some of these you can take care of pretty simply on your own – if there is obvious debris that you can remove safely, do so – but for most repairs you will want to call in a licensed technician. Especially if the problem is something potentially hazardous like mold growth or a refrigerant leak, you don’t want to take the risk. Let Boehmer Heating & Cooling who has technicians that are  trained in safely and effectively repairing the problem take care of it, so that your home can be comfortable again.

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Pittsburgh Air Conditioning Tips: How to Troubleshoot a Failed AC Unit

Monday, June 11th, 2012

In most cases, a failed air conditioning system may be fixed by going through some troubleshooting guidelines. If you would like one of our Pittsburgh air conditioning technicians to help you get your AC unit running again, give Boehmer Heating & Cooling a call. We can also send someone to your home if we can’t get your system working again.

Here are some basic steps to try before you call for a repair.

Check All Controls and Fuses

When your Pittsburgh air conditioner won’t cool your home properly, always check the thermostat to see if it is on “cool” and set for the right temperature. If the air conditioner has shut down, check to make sure that the unit is receiving power by looking in the fuse box for a flipped circuit breaker and also making sure it is plugged in properly. You can also inspect the visible wires and electrical components for obvious damages. Call a TOWN NAME air conditioning technician if you see physical damage to the electrical components. Never try to fix this yourself.

Sometimes when there’s extreme weather conditions in the summer, such as very high temperatures or high humidity levels, the high-pressure switch can get flipped and turn off the air conditioner. You can easily find the switch on most AC models in the compressor’s access panel. Check your owner’s manual or call us if you don’t know how to locate or reset the limit switch.

Check for Refrigerant Problems or Condensate Pan Leaks

Refrigerant problems caused by the wrong amount of refrigerant can keep the AC unit from cooling your home properly, and you can usually tell if there’s a refrigerant issue by looking for frost or icing on the evaporator coil. When there’s excess coil icing, it means that there isn’t enough cool air being delivered to your home. If you see thick frost on the evaporator coil, a technician will most likely need to charge the refrigerant, or there could be a leak in the refrigerant line.

Condensate leaks into the condensate pan can also cause an air conditioner to fail. The condensate drip pan is installed underneath the air handler to catch condensate leaks if the drain system gets clogged. Most of the time, a small clog in the drain line can be easily cleared. Also check the condensate switch for issues; sometimes these can be defective and cause your air conditioner to shut down.

At Boehmer Heating & Cooling, we want to be the only Pittsburgh air conditioning contractor you’ll ever need. Call us any time to get troubleshooting advice for your AC system.

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Why Is Ice in Central Air Conditioning a Problem? A Question From Brentwood

Monday, September 5th, 2011

If your Brentwood home’s air conditioner does not seem to be working as well as it should, your natural first reaction is to go out and take a look at the compressor to see if there is anything you can do quickly to correct the problem. Of course, you cannot assess the situation unless you know what you are looking for. For instance, if you see ice forming on the condenser coil or anywhere else on the air conditioning system, you will know you found the likely source of the problem.

Ice can form in your air conditioner for a number of reasons. The most common one is that your refrigerant levels are low. Since this refrigerant is contained in a closed system, a deficiency in refrigerant means that there must be a leak somewhere in that system. Only a certified professional can refill your refrigerant and determine where the leaks are in the system to make the necessary repairs.

Another reason that ice can develop in your air conditioner is because the air is not flowing fast enough through the system and across the coils. This can happen because of a problem with the fan or because there is an actual physical impediment to the air flow. Regardless of the reason, the ice will form because without adequate air flow the condenser coils will get too cold.

These coils are typically kept just above freezing by the constant flow of air across them. When the air passes by them at this temperature, the moisture from the air condenses on the surface of the coil. But because the coil is not quite freezing, the water then runs down into a collection pan. When the coil is too cold, however, the moisture from the air will freeze on the coil before it can run off.

This ice actually manages to insulate the coil and keeps it from properly cooling the air or removing any additional moisture. If left unattended, the ice in your central air conditioning system can cause real damage to the unit. Plus, it is not allowing the air conditioner to do its job and cool your house down. So if you notice any amount of ice at all beginning to form on any part of your air conditioner, be sure to call for professional service right away.

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What Can You Do Yourself if Your Central AC Unit Does Not Work? When Should You Call a Professional?

Wednesday, June 8th, 2011

If your air conditioning system suddenly stops working or is not keeping your house as cool as you think it should, the chances are good that you will have to call in a professional to make the necessary repairs and get you back on track. However, there are a few things you can do on your own before you make that call to ensure that this really is something you cannot take care of on your own.

While it may seem obvious, the first thing you should check is the thermostat to make sure that it is set to a temperature that will trigger the air conditioning to come on. If your thermostat for some reason is set too high, then the air conditioner will not receive the signal to start cooling the house. This is an easy fix, of course, and you will be back up and running in no time.

If the thermostat is indeed set where it should be, the next thing to check is the air filter. Most people with central air conditioning know that they should change the filter once every month or so, but this seldom actually happens.

If it has been a while since your air filter was changed, there is a good chance that it is clogged and therefore blocking air from circulating from the air conditioner through the rest of the house. This is an easy enough fix, as all you need to do is replace the current air filter and your system should be able to pick up right where it left of. However, if the blocked air filter has also caused ice to form behind it, you may have to wait for a couple of hours until the ice has a chance to thaw.

Next, you will want to check and make sure that the air conditioning system is actually getting power. Look to see if any of the breakers are tripped or if there may have been a current interruption for any other reason that is within your power to fix. If this is the case, though, it is a good idea to turn the air conditioning system off before you attempt to restore the power.

If none of these measures are able to get your air conditioning system up and running again, you should not hesitate to call a professional. Many air conditioning repairs are quite basic, but they still need to be performed by a licensed professional.

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