What is a contactor on an air conditioner? Here's the deal
If you've ever sat around wondering what is a contactor on an air conditioner, there's a good chance your outdoor unit just stopped working or you're hearing a weird clicking sound every time the thermostat kicks on. It's one of those parts that nobody thinks about until the house starts getting stuffy, but it's actually the literal "gatekeeper" of your entire cooling system. Without it, your AC is basically just a very expensive metal box sitting in your yard doing nothing. ...