If the unit doesn't seem to be cooling your home adequately, start by lowering the thermostat five degrees. If that does not fix the problem, you may have a dirty evaporator. Carefully clean the evaporator and let it run for a few hours. If the problem still exists, it could mean you have an improperly sized air conditioner.
Keep in mind that an extremely hot day may impact your unit's effectiveness. If temperatures outside are over 100, you may not be able to achieve 62 degrees inside your home, especially if you have a lot of windows letting in the sun's energy. Always consult with a professional before making the decision to replace your unit, especially if temperatures have been unusually high.
If you have questions, give us a call: 239-596-5855.