Your air conditioner is supposed to keep you cool, not keep you up at night with strange noises. While some low-level humming or whooshing is perfectly normal, unusual sounds are often a warning sign that something is wrong. If your AC starts to rattle, squeal, or bang, don’t ignore it: these noises can be early indicators of mechanical issues that, if left unchecked, could lead to major repairs or total system failure.
Let’s break down some of the most common AC noises, what they might mean, and why it’s important to take action quickly.
