Air Conditioning Repair

Do you need air conditioning repair services? At Wang's Heating & AC Service in Rapid City, we service all makes and models of central air conditioning units. When we are on the job, you don't have to worry. Our factory trained technicians can expertly diagnose and repair your system with ease. Our goal is to restore optimal efficiency so that you have comfort in your home or business. Is your unit running at optimal levels? Preventative maintenance ensures that your system is in top shape for when you need it most. 

Common Causes of Air Conditioner Problems

A sweltering summer in South Dakota, in a home or business overwhelmed with air conditioner difficulties, is an experience that is difficult to deal with. Never leave your summer comfort to time and chance! We often receive calls from frantic homeowners that have a unit blowing warm air or one that won’t turn on at all. Here are the most common causes of air conditioning problems that often require a professional service call:

1. Low Refrigerant Levels

The refrigerant is a vital part of your air conditioning unit. It helps to remove the heat and humidity from the air. When a leak develops in the refrigerant lines, it can cause a shortage that will make the system unable to work effectively. Regrettably, repairing this air conditioner issue properly is not just a matter of refilling the refrigerant. A repair technician must find where and why the unit is leaking. They will look for holes in the lines and any other areas of seepage. If there are multiple leaks in the system, then it can be a time-consuming process. However, this is a situation that requires a trained professional with expertise. 

2. Ice-covered Evaporator Coils

Refrigerant circulates through the evaporator coils. This liquid is accountable for absorbing the heat and removes it from the home. Air circulating around the coils helps to expel the warm air. If there is a problem with the airflow, the evaporator coil can become too cold. You will see the signs by a layer of ice developing on the outside unit. An iced over unit will blow warm air through the home. In most cases, this problem is caused by a refrigerant leak. 

While a refrigerant leak is one problem, there are other reasons your unit can ice over. Are you one of those people that turns your thermostat way down attempting to keep your home cooler in the summer? You could cause your unit to freeze over. The unit is only designed to cool your home about 20 degrees less than the outside temperature. A thermostat set too low will cause the system to run continuously. A system that never shuts off can quickly freeze over. When it’s covered in ice, you take a chance of destroying the compressor and other significant components.

3. Dirty Condenser Coils

The condenser coils are part of the outdoor unit. Their job is to remove the heat from the air and then expel it to the outside. These coils cannot efficiently work when they are covered with dirt and grime. When it occurs, heat transfer is obstructed, and your unit must work harder. Dirty coils are a common repair issue. However, be advised that this can cause increased wear on the system.

4. Fan Motor/Blade Difficulties

One of the internal components of your AC unit is a fan. The fan is responsible for blowing indoor air over the evaporator coil, which cools it. A second fan blows air over the condenser unit, which expels heat. When one of these fans isn’t working properly, it causes your unit to have poor airflow and other issues. Fan failure can be caused by a faulty motor, deficient amounts of lubrication, damaged belts or too much grime and debris. If you disregard the issue, it can cause complete compressor failure. If the compressor should fail, it’s often known as a “system death.” 

5. Clogged Drains

Your AC unit removes moisture from the air, and it must go somewhere. The moisture is removed through a drain line. It travels down into a pan and lastly out of the system. When the line or drain becomes clogged or if the drip pan becomes full, water will pool and cause damage to the unit. In these instances, you often see water leaks coming through walls, ceilings and collecting on floors. Water spillage for any period can cause mold, which is an even bigger problem.

6. Thermostat Issues

Thermostats can be a big hassle, but they can cost you a ton of money in wasted heating and cooling bills. They may be incorrectly calibrated and not giving your system the proper signal to control your unit. Usually, it’s fairly easy to install a new, preferably programmable, thermostat. Also, sometimes they can be calibrated to control the unit effectively. It takes someone with electrical knowledge to replace a thermostat, so this job is better left to the professionals. 

Preventative Maintenance

All heating and air conditioning units require annual maintenance. It’s best to have your air conditioning unit checked in the spring before the heat of summer. Today’s systems are advanced and need a tune-up to run at optimum levels. Annual upkeep can restore an AC unit’s lost efficiency. Additionally, if properly kept, your unit will be less likely to suffer from mechanical failure, and you can extend the projected life span. Give Wang's Heating & AC Service a call today to schedule your air conditioning maintenance.




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