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Why is My AC Blowing Warm Air?

Daniel Molina - Friday, September 19, 2014

Why is my AC blowing warm air?

Air Conditioning Repair | AC Blowing Warm Air

Over the decades since air conditioning was invented, people have become so dependent upon it that it’s difficult to tolerate the heat when you need air conditioning repair. It is used almost everywhere in our lives and when experiences a problem and the AC is blowing warm air on a hot day, it rapidly becomes intolerable for u, and especially for family members with chronic health problems. By using the following tips, you may be able to restore your air conditioners cold air, and avoid having to call for air conditioning repair in Dallas.

Check the Thermostat

The thermostat is one of the most overlooked components of the HVAC system. Yet it is both a component that will eventually have to be replaced, and is a source of numerous problems simply due to our own forgetfulness. First, ensure it is set to the Cool function. Someone may have turned it off to run the fan and forgotten to turn it back. If this is the case and the fan is on manual rather than automatic, this will be the cause of the ac blowing warm air. Next, check the temperature. For example, if it is set at 79 degrees, and the inside temperature is 75, the unit will not cut on unless the temperature reaches 80 or above. Finally, check the fan. If the fan is set to manual rather than automatic, it will blow warm air until the compressor runs producing cold air.

After ensuring the thermostat temperature is set lower than the room temperature, and that the fan is on automatic, if the AC blowing warm air continues, check the following:

Check the Filter & Breaker

Check the air filter, and ensure it is clean. A dirty filter can prevent the proper air flow, causing the system to overheat and throw a breaker. Some split systems have a switch inside the indoor portion of the system. It will typically look similar to a light switch. In some systems, if the breaker is thrown the fan may run, but not the compressor, resulting in the AC blowing warm air. If the switch has been thrown, switch back to on. If nothing occurs, proceed to the next step.

The External Breaker

Check the breaker on the outdoor condenser. There should be a box containing a breaker, located on a wall or near the outside unit. If the breakers has been thrown, switch it to the on position. Numerous factors can throw a breaker, while it may be a problem with the air conditioner, the power service may have fluctuated when a power surge occurred. If these tips fail to restore cooling call your HVAC technician for repair when your AC is blowing warm air.

Tips for Best Performance

To ensure the proper operation of your HVAC system, do not block the area around the air return (the area where the filter is located). Blocking the air return will impair its airflow, and can cause the system to overheat potentially resulting in damage to the system or even fire. Overheating can cause a breaker to be thrown, resulting in the AC blowing warm air.

Keep registers’ clear of obstruction. Drapes, furniture or other objects covering the registers will affect the system and may cause problems within the system itself.

The HVAC system requires annual maintenance for safe and effective performance. During exceptionally hot summers or cold winters or when dusty remodeling has occurred within the home, have your system inspected more frequently to avoid damage and maintain performance.

Over time dust and grime collect on cooling coils, especially if the filter hasn’t been routinely changed. Dirty coils will result in poor performance and other potential problems, including the AC blowing warm air. Your technician will check your coils during routine maintenance to assess if they need cleaning.

When your AC is blowing warm air, call Garland Heating and Air Conditioning’s certified professionals for professional heating and air conditioning service. You can rely upon Garland’s dedicated professionals for superior service.

Air Filters for Your Heating & Air Conditioning System

Daniel Molina - Wednesday, September 17, 2014

heating air conditoning filters

Air Filters | Heating and Air Conditioning

The majority of homeowners know to change the HVAC filter routinely, though not everyone agrees on the best type of filter for the HVAC system. Before you purchase further air filters for your HVAC system, being aware of the following information can not only save you money, it may prevent inadvertent damage to the heating and air conditioning system.

The purpose of a filter is to protect the heating and air conditioning system. Numerous homeowners purchase low-cost fiberglass filters for the heating and air conditioning system. Some manufacturers recommend them, and while these filters will catch the larger particles that can cause damage, they won’t catch the smaller particles that will over time affect the system, its performance and increase the cost of service and repair.

Heavy duty filters may work too well, and can reduce the airflow across the heat exchanger. Consequently, this will reduce the system’s efficiency, raise the cost of energy bills, and damage the heating and air conditioning system. On the other hand, a high-efficiency filter or a dirty filter can lead to the condensing coils on an air conditioning unit to freeze.

How Dirty Air Filters Affect the System

In our busy lives, it is easy to overlook changing the air filter and scheduling maintenance. Unfortunately, skipping these necessary actions can create serious problems in the heating and air conditioning. The issues caused by a dirty filter include:

  • Dirty air ducts. A dirty filter will allow the dust and grime to slip past the filter and on into the system coating everything with a coat of dust and grime, including the air that you breathe.
  • Reduced air flow. Air conditioning units are designed to function with a particular amount of air flow. A dirty filter can prevent the air flow the system needs, resulting in it being overworked, and will lead to premature wear, damage and malfunction. The energy cost of operation will become elevated as the system struggles for air.
  • Cooling inefficiency. As dust and grime build up on the cooling coils they can freeze. In addition, a dirty coil can cause an increase in condensation, resulting in water leaking from the system onto the floor. A coil in need of a professional cleaning will cause the air conditioning system to struggle in its efforts to cool the home.
  • Elevated power bills. A dirty air filter will result in reduced efficiency. Furthermore, a dirty filter causes air conditioner to work harder, placing a strain on the unit, and increasing the energy bill.

Select a day such as the first, or a day easily remembered to change the filter monthly. Pleated filters and others of higher quality may only require changing every three months. Always check the filter monthly. In extremely dusty conditions, even high efficiency filters will require more frequent changing.

With such a large variety of filters available, it can be difficult to select a filter for the heating and air conditioning system. Being informed on different filters helps in making an informed choice. Checking with the manufacturer is another option. If the manufacturer recommends a pleated filter, for example, select this filter. Your certified HVAC technician is the best source for guidance.

Fiberglass Filters provide the least costly filters available. They provide minimal protection to the heating and air conditioning system by removing the largest particles that can damage your unit. Replace a fiberglass filter every month.

Pleated Filters provide an improvement over fiberglass filters. The increased surface area provided by pleated air filters enables them to trap a larger number of airborne particulates without restricting airflow. Pleated filters can last up to 3 months, though you should continue to check the filter monthly and change if necessary.

Electrostatic Air Filters provide the next step up. These filters utilize electronically charged fibers to remove smaller particles, and provide greater efficiency in filtering particulates from the air than pleated or fiberglass filters

Electronic Air Cleaners are a separate appliance installed within the home’s ductwork, providing greater effectiveness than other filters.

Garland Heating and Air Conditioning’s certified HVAC technicians have the expertise to provide professional heating and air conditioning services each and every time. For service you can depend upon, give us a call.

Ductless Air Conditioning Dallas TX

Daniel Molina - Monday, September 15, 2014

ductless air conditioning dallas tx

Ductless Air Conditioning | Air Conditioning in Dallas, TX

If you are considering the available options for providing air conditioning in Dallas, TX for your home, you may have considered a ductless system as a potential option. Going ductless may be the only option for your home; you may have an addition, a small apartment or unconditioned room that could benefit from it. Let’s look at the benefits of ductless air conditioning in Dallas, TX and how it can benefit you:

  • They’re cost-effective. A ductless air conditioning system is more energy efficient than a central system, saving money on the cost of energy. According to the EPA, approximately 30% can be saved on energy use by installing an Energy Star certified ductless system.
  • They’re easy to install. Ductless systems can be installed in significantly less time than central air conditioning. They will fit almost anywhere. If the area has a wall and a ceiling there will be a system right for your space.
  • They’re simple to operate. Ductless systems often have a remote control, allowing adjustments to the temperature of the air coming from the unit.
  • They’re compact. A ductless system’s reduced size makes them ideal for cooling down small spaces or individual rooms. Ductless systems offer a variety of interior design options. The indoor air handlers can be suspended from a ceiling, mounted flush into a drop ceiling and out of sight, or hung on a wall. Ductless indoor units today provide sleek profiles. Ductless systems offer greater home security, due to the requirement of only a small hole in the wall. Systems mounted through the wall or in a window provide a convenient entrance for intruders.
  • They’re quiet. Ductless systems operate quieter than other options.
  • Helps to maintain a consistent temperature. If your home has rooms that tend to be colder in the winter and warmer in the summer, a ductless system can provide the solution for a more consistent temperature. When using a ductless system for zoned heating and cooling, you have control over the temperature of each zone.
  • Variable speed fans. Variable speed fans provide the air that is needed by varying the speed of the fan for one room or multiple rooms. Automatically increasing and decreasing the fan speed as is required, will save money on energy, while providing the comfort you need.

Ductless Air Conditioning in Dallas, TX

Ductless air conditioning requires little installation, and provides an ideal solution if the installation of ductwork in your home is not an option, or if you would prefer to avoid the costs of duct installation and repair.

Ductless Mini Split Air Conditioning in Dallas, TX

As with central HVAC systems, mini splits have two main components: an outdoor condenser containing the compressor, and an indoor air-handling unit. The power cable, refrigerant tubing, suction tubing, and a condensate drain are housed within a conduit linking the outdoor and indoor components.

The ductless mini split air conditioning in Dallas, TX provides zoned air conditioning without ducting in multi-family homes or additions that have non-ducted heating systems. The system has the advantage of allowing for only the occupied spaces to be conditioned, saving on energy costs.

Since mini splits have no ducts, the energy losses associated with ductwork of central forced air systems is avoided. Duct losses of conditioned air due to leaks can account for approximately 30% of energy use, especially if the ducts are located in an unconditioned space such as an attic.

Mini Split Heat Pump

Mini split heat pumps share the advantages of mini split air conditioners, with the addition of also providing heat for your home.

As with a traditional heating system with ducts, correct installation is the key to this system’s efficiency and performance. The placement of the indoor units will require accurate calculation in order to achieve the maximum efficiency, performance and coverage for each. Use a qualified HVAC contractor to provide installation in order to avoid the problems associated with an improperly sized or poorly installed system.

With accurate sizing and installation, ductless mini-split heat pumps can provide greater comfort, cleaner air, enhanced efficiency and performance and a quieter home environment.

If you’re interested in ductless heating and/or air conditioning in Dallas, TX, Garland Heating and Air Conditioning’s HVAC professionals will provide the information you need to make an informed decision in determining the best HVAC for your home. You can count on the expertise of our HVAC certified technicians to provide the professional installation you desire. Thanks for visiting Garland Heating and Air Conditioning.