Three Subtle But Serious Issues That Can Affect Older Air Conditioners

Apart from wear caused by normal use, there are several different things that can cause damage to your air conditioning system over time. These problems tend to affect older systems, especially if they aren't regularly maintained, and they aren't always easy to spot with just a cursory look. Here's what to keep on the lookout for.

Pest Infestation

Pests, from insects to rodents, can damage your home, and your HVAC system is no exception. Pests can cause problems in several different ways.

• Nests built in ducts or in vents can not only cause allergy symptoms to increase, but they can block airflow and put a strain on your air conditioner.
• Rodents and insects alike can damage electrical components, circuit boards, and even larger parts like fan blades. Wires and cables can also be ruined.
• Pests can also chew through or damage refrigerant lines and coils.

Pest issues often build up over time, and they can happen in several different parts of your system. Inspect the outdoor condenser unit and look around the ducts for signs of pest damage like droppings, nesting materials, or signs of gnawing. If you need help, ask a specialist to inspect the inside of your ducts. If repairs are necessary, it's important to address both the damage and the source of the infestation.

Component Corrosion

Though your air conditioner is designed to withstand the elements, many different components can start to corrode over time, and this is especially true in humid environments. Copper coils, condenser fins, and any aluminum parts like ductwork and coils are all susceptible. It's important to note that aluminum doesn't rust, but it can still corrode.

Mild corrosion isn't a serious problem and can be properly managed if caught early. More serious corrosion, however, can do everything from cause your air conditioner to lose efficiency to cause it to shut off entirely; once corrosion starts affecting parts like wiring and capacitors, your system may no longer be able to function at all until the affected parts are replaced.

Signs of corrosion can show themselves on the condenser unit, such as on the fins, but take a look inside and around your ducts as well. Corrosion can also spread if left alone too long, so ask a professional for repairs if you see any signs of trouble.

Safety or Structural Hazards

Older air conditioners can also start to suffer from, or even cause, safety and structural issues. For example, old components can create the risk of electrical fire or shock. Unmaintained air conditioners can also promote mold growth due to the humidity in places like the condenser unit and condensate drain.

Air conditioners are also very heavy. If you have an air conditioner installed in your window or wall, especially if it's improperly installed, it can put heavy stress on the window or wall frame. Even if it looks fine, it's a good idea to have it looked at carefully by a professional, as not all structural damage will be immediately visible.

For more information on AC repair, contact a professional near you.