What Makes Air Conditioners Freeze Up

Several problems can cause an air conditioner to freeze up. Some issues may be easily resolved, while others will require the expertise of an HVAC professional. If you notice your AC unit is freezing, turn off the air conditioner and allow the ice on the coils to melt. Check your AC system for the items below. 

DIY Troubleshooting When AC Freezes Up

Blocked Air Flow - One of the most common reason for AC freezing problems is that the air flow to the system is blocked at some point. The blockage can occur at the filter, the ductwork or at the intake register. Air flow problems are generally simple to resolve. 

  1. Check Air Filters - The first step to take is to check the air filters. If the filter appears to be dirty, clean or change the filter. Sometimes, the remedy for the freezing problem is simply replacing or cleaning the air filter to improve the air flow to the system. 
  2. Check Ductwork - If the ductwork has collapsed or leaking due to damage, the air flow to your AC unit may be compromised. Check the duct system for any sign of damage that may be causing an air flow problem. 
  3. Intake Registers - Intake registers may be located on a wall or in the ceiling. If your registers are located on a wall, check to make sure that furniture or some other obstruction is not blocking the register. 

Items to be Addressed by a Professional HVAC Technician 

If you have checked for air flow problems and you still experience air conditioners freezes up, schedule a service call with your local HVAC pro. Several problems can contribute to AC freeze-up that must be addressed by an experienced professional. 

  1. Low Coolant - Air conditioners freezes up when the coolant is low. Air conditioners are sealed systems so the coolant levels will only be low if there is a leak somewhere in the unit. The HVAC pro will recharge your coolant and locate the leak. You will need to fix the leak or your AC system will soon freeze up again.
  2. Dirty Condenser or Coils - Though a handy homeowner may clean the coils and the condenser using a coil cleaning kit, most people should leave condenser and coil cleaning to the pros.
  3. Fan Problems - If the fan that distributes the air is not working properly or is not moving fast enough, the AC unit may freeze. If your fan motor has gone out, your HVAC pro will be able to replace it. If the fan is simply running too slow, your pro may be able to set the fan at a higher speed. 
  4. Faulty Thermostat - If the thermostat is not functioning properly, it can cause the air conditioner to run continuously until the condenser freezes. 

For AC freeze-up problems in Port Neches TX, call Thermacon Service Company to schedule a service call.


Ever Wonder How an Air Conditioner Works?

Residents of Beaumont TX understand that summers are uncomfortable without a working air conditioner. Although the experts at Thermacon Service Company Inc. can repair, install, and fix your system, you will minimize future problems when you know how an air conditioner works. 

Components and How an Air Conditioner Works 

Each component of your system plays an important role in cooling your home effectively during the hot, humid summers. 

  • Condenser - This unit sits outside and houses the fan motor, compressor, capacitor, and condenser coil. The compressor, which is a pump, moves the refrigerant or heat transfer fluid between the indoor evaporator and the condenser. First, hot liquid refrigerant travels from the condenser coil to the inside unit. It takes a lot of energy to condense the liquid refrigerant to a gas, and it is the reason these coils are the “hot coils”. The fan cools the coils by dissipating the heat into the air.
  • Evaporator - An evaporator is the indoor unit that provides the cooled air throughout your home. The evaporator coil, air handler, blower, and refrigerant are in the unit. The liquid refrigerant from the condenser runs through the evaporator coil, which turns the liquid into a gas and lowers the temperature. A fan blows air over the evaporator's “cold coils” and that cold air is what cools your home. The evaporated air feels cool and dry on your skin. Too much moisture in the air makes it uncomfortable to breathe, and the temperature feels warmer than the actual thermostat setting.
  • Ductwork - The ductwork is the last thing you think of when it comes to your air conditioning system, but clean ductwork is only part of how an air conditioner works more efficiently. During scheduled maintenance, let a technician inspect, clean, and repair ducts. Besides dust, other contaminants compromise your indoor air.
  1. Allergens
  2. Dander
  3. Dead insects
  4. Dirt
  5. Fungi
  6. Mold and mildew
  7. Mold spores
  8. Pollen

Cleaner air improves indoor air quality, and you should have a technician check the ductwork during scheduled maintenance. Periodically, inspect the ductwork for damage, and if your air smells musty, moldy, or stale, call for service. Have your ductwork cleaned once a year and under these circumstances.

  • After natural disasters
  • After seasons with high pollen counts
  • After ductwork installation and repairs
  • After home renovations
  • After installing or replacing insulation
  • Before moving into a new home

Thermacon Service Company Inc. of Beaumont TX has technicians with North American Technician Excellence certifications who perform air conditioner services. It is not enough to know how an air conditioner works if it does not receive preventive maintenance. With twice-yearly maintenance, you will extend your system's lifespan and improve energy efficiency. 

Call us if you have questions about your air conditioner. If you need 24-hour emergency service, a qualified technician is always on call.


Heat Pump or Air Conditioner - How to Decide

When you need to cool your Lumberton TX home or business, it can be difficult to decide if you should install a heat pump or air conditioner. Thermacon Service Company, Inc. is a local heating and cooling company that can help you decide. We know that the heat and humidity of Texas can get uncomfortable and we want to help you make the best possible choice for cooling equipment.

How a Heat Pump Works as an Air Conditioner

You may not be aware that heat pumps do more than just provide heat. During the warmest months of the year, heat pumps reverse the normal heating process and provide cool air to your home. Heat and humidity is pulled from the air and cooled with refrigerant from the heat pump. In warm climates like Lumberton TX, a heat pump is less expensive to operate than a traditional air conditioner. When you own a heat pump, it is not necessary to have a separate furnace and air conditioning system. The heat pump provides both heat and cool air to your home or business. However, you probably wouldn't get too much use out of the heating component.

Benefits of a Traditional Air Conditioner

Since we need air conditioning much more than heating in this part of the country, you may want to select a traditional cooling unit over a heat pump. It is important to pay attention to energy efficiency when you make this decision. Standard air conditioning units are slightly more energy efficient than heat pumps when used for a prolonged amount of time.

Choosing the Right Heat Pump or Air Conditioner 

When choosing a heat pump, you want to select a unit that has a Heat Seasonal Performance Factor (HSPF) above 7.7. This is the minimum acceptable energy efficiency rating enforced by the Environmental Protection Agency (EPA). The HSPF refers to the heating and cooling output of the unit measured against its total energy consumption.

If you opt to have an air conditioner installed, it should have a Seasonal Energy Efficiency Ratio (SEER) above 13. Our company has several air conditioners available that have SEER ratings in the 20s. The SEER of an air conditioner is calculated using the same method as the HSPF.

As a Carrier factory authorized dealer, Thermacon Service Company, Inc. stocks some of the most energy efficient heating and cooling equipment in the industry. An installation technician can help you evaluate whether a heat pump or an air conditioner would work best for your situation. Keep in mind that only the top five percent of HVAC companies across the nation are chosen to represent Carrier as a factory authorized dealer.


How Tax Incentives Impact Your New Heating and Air

Have you been considering having a new heating and cooling unit installed? Home and business owners in Nederland TX sometimes put off replacing an inefficient unit due to concern about the cost. If you can relate, the Thermacon Service Company, Inc. has good news for you. In early January of 2013, President Barack Obama reinstated the 25C Tax Credit for installing high efficiency heating and cooling systems. These credits previously expired on December 31, 2011. The recent legislation extended the 25C Tax Credit to December 31, 2013 and is retroactive for all qualified installations in 2012.

Heating and Cooling Equipment Eligible for the Tax Credit

The Internal Revenue Service (IRS) has created five different categories of high efficiency equipment that are eligible for the tax credit. The 25C designation refers to the section of IRS code that explains the rules for this deduction. The amount of the credits range from $50 to $300. To claim the credit, you must have had one of the following pieces of equipment installed during the eligible years:

  • A $50 tax credit is available for the installation of an advanced main circulating fan. This is a fan that is used in furnaces powered by natural gas, propane or oil. The electricity consumption of the furnace fan can't equal more than two percent of its total energy output.<
  • A $150 credit is available on boilers and furnaces with an Annual Fuel Utilization Efficiency (AFUE) of 95 percent or better. The unit must operate on natural gas, propane or oil.
  • A $300 tax credit is available on water heaters that use an electric heat pump and have an energy factor that is 2.0 or above. Water heaters that are powered by propane, oil or natural gas with a thermal efficiency rating of 90 percent or better are also eligible.
  • A $300 tax credit is available for split system air conditioning units and heat pumps that meet energy efficiency standards. Air conditioners must have a Seasonal Energy Efficiency Ratio (SEER) of 16 and heat pumps must have a Heat Seasonal Performance Factor (HSPF) of 8.5. Packaged central air conditioners with a SEER of 14 and packaged heat pumps with a HSPF greater than 8.0 are also eligible.

Carrier High Efficiency HVAC Equipment for Your Nederland TX Home or Business

Thermacon Service Company, Inc. is proud of our status as a Carrier factory authorized dealer. Our installation technicians are available to assist you in selecting a unit that meets your needs. Carrier equipment is known for its energy efficiency and durability. As a factory authorized dealer, we have immediate access to new product releases and HVAC industry information. The status of factory authorized dealer is reserved for the top five percent of HVAC contractors across the country. When you work with our company, you get high quality products and excellent service in addition to tax savings.