A lot of things can go wrong with the air conditioner, one thing is that dust can be a killer.
A dusty air filter is no good.
That means debris plus dirt will get sucked up into your air conditioner since its line of defense is worthless. You then will have polluted indoor air conditions plus reduced comfort. An air conditioner can’t run absolutely well when it is dirty. Moving parts struggle plus things tend to overheat plus break. Mold also is absolutely attracted to a cooling system. Think about it. It is a wet plus dark venue, the perfect breeding ground for mold! Check the cooling coil once a week. That is a number one venue that mold likes to form. The wetness also means rust too. Moving parts or even parts that hold your air conditioner together can rust plus break. That means a major AC repair is coming. You want to be on it with correct cooling repair to ensure a small repair does not turn into a immense problem, finally, have you noticed water around your AC? Does the cooling method leak water down the sides or spit it out? This is due to the condensate drain not toiling. Most people think that means a major issue, but however, that is just algae that clogs up the drain plus allows water to spill over. A homeowner can muck out the drain with their hand in under many minutes. It is easily easy to keep the AC method clean plus running happily, however just make sure to check it out respectfully.