The compressor can get leaves etc. inside depending upon where you live. Coils do get dirty and should be sprayed periodically. Yes, filters are easy for most. But maybe a widow who is elderly does not want to or know how to change it. And, would you know the system is running efficiently solely based on the fact that at some point in time, the inside temperature reaches the thermostat setting?
To each his own, it seems......
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Originally Posted by retiredguy123
If so, even that is a waste of money. There is really nothing to clean in an air conditioner, replacing a filter is simple, and as long as it is cooling properly, there is nothing to adjust.
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