Do you remember to do your regular air conditioner maintenance? If you care how much it costs to operate or even replace the AC unit, you should. If you do not do the maintenance yourself, make sure someone does. Good air conditioner maintenance practices can assure efficient operation and long life for the air conditioner unit.
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You can do a lot of the maintenance yourself. Beyond cleanup and replacing the filters, you may want to give the fins some attention. You can find a fin comb online or at your local ac supply store. Use the fin comb to straighten the soft aluminum fins and improve air conditioner function. But please be careful. The fins can be sharp and may cause some considerable knuckle damage if caution is not used. After you have done what you can do, it is time to call in the air conditioner pros for a regular AC checkup and maintenance visit.