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A new air conditioning system is an expensive investment. Ideally, it should be energy and cost efficient, while being reliable and robust enough to cool your entire house even during the hottest parts of the Arizona summer.

Even with regular maintenance, you may reach a point where your system isn’t functioning well enough to keep your home cool when the temperature spikes well above 100 degrees. Here are a few things to consider when choosing to replace or repair your existing air conditioning system:


The age of your system

Most air conditioning system are designed with a working life 10-15 years. In Arizona, a system can see twice as many days of operation as other parts of the country. If your unit is close to ten years old or older, you may want to consider replacing it instead of repairing it. Heating and cooling costs can account for nearly half of your utility costs.

Older air conditioning systems also use R22, a refrigerant, which is being phased out over the next few years out to meet environmental protection regulations. Replacing this refrigerant in older air conditioning systems to one that complies with these regulations is expensive and since R22 is being discontinued, it’s becoming more difficult to source. New air conditioning systems are all manufactured to comply with these regulations and are designed to be much more energy-efficient. Using the correct refrigerant, they are also far more eco-friendly because they release fewer carbon emissions. By installing a new air conditioning system you will also notice a significant improvement in your home’s indoor air quality. A newer air conditioning system will also increase the resale value of your home.


Excessive noise and dust

The constant presence of dust in your home – even after cleaning, is a good indication that there are leaks in the ductwork. Those leaks will compromise the efficiency of your air conditioning system, and that will increase the operating cost. If your air conditioner is excessively noisy, there is a good possibility that your duct system isn’t large enough for the square footage of your home. It’s also possible that you have a problem with the unit’s indoor coil.


Your air conditioning-related expenses are increasing

If your utility bills are going up and there isn’t any change in the way you’re using it, that’s a good indication that your system is no longer as efficient as it should be. Another obvious sign is the amount of money you are paying for air conditioning repairs, and the frequency with which you have to have the system repaired.


Humidity inconsistencies

In addition to lowering the temperature in your house, your home’s air conditioner is supposed to remove humidity from the air. Even though Arizona summers are thought of a a ‘dry heat’, relative humidity during the late summer can reach as high as 50%.


Temperature inconsistencies

When a system is functioning correctly, it will maintain consistent temperatures throughout the house. When the cooling portion of your HVAC system isn’t able to do these things, either your equipment is malfunctioning, or there are issues with your ductwork. Think about the cost of repairing these problems, and ask yourself if it is worth your while to spend the money on repairs.


These warning signs may be an indication that you should think about replacing your air conditioning system. It’s natural to be concerned about the cost of replacing part of your HVAC unit. It’s an expensive purchase, and a huge investment in your home. Don’t panic at the prospect of having to come up with a lot of money upfront. A new air conditioning unit may wind up eliminating the constant repair costs, and lower your utility bills enough to help you recoup part of your investment. A newer, more energy-efficient air conditioning system will also increase the resale value of your home.