Leaks can happen, however, it usually indicates that the unit needs replacement. If the AC system makes unusual noises such as the sound of a rattling or grinding, it might be time for an overhaul. The noises could be caused by issues like worn-out bearings , or even a damaged compressor.

It could be cheaper to change your AC unit, than to repair it each time it breaks down. If you notice that the cost of energy is constantly climbing, it’s that your air conditioner is decreasing in efficiency. In addition, you might want to consider replacing it soon in the event that your air conditioner is over 10 years old, because most AC units last for 10 or 15 years. Even if it seems to be in good working order it could be less energy efficient and will cost more over the long term. If you notice a musty, moldy ouchy, musty, or wet smell from your AC unit, it could indicate that there is a growth of mildew. This can pose the risk of putting your health at risk.

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