Homeowners who don’t give their AC system a regular tune-up will only have certain things to go by to determine if their unit has issues, and one of them is through sounds. Below are a few sounds that no homeowner will want to hear from their AC system. If any of these appear, the best course of action will be to have a professional perform an inspection. 1. Rattling and Clanking Nuts, bolts, and electrical wiring can all become loose and rattle noisily inside the system. If you can tell that the rattling is external, then it may be a
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