TLike many air conditioner parts, the condenser coil helps remove hot air from a space. If the air conditioning system is no longer generating the same amount of cool air as it used to, it could be a sign this component is failing.
That said, it could also be a sign of several related problems, like insufficient refrigerant. That’s another smart reason to contact a professional when you notice problems. They’ll know how to diagnose the cause of the issue accurately.