If you find that your AC is making a noise that can appropriately be described as “screaming,” it’s not because it’s excited about finding the best ice cream parlor this summer. It’s probably a refrigerant leak, and it’s very serious.
That being said, you may be wondering if it’s ever a good thing for your air conditioner to be making certain noises. That answer is “No.”
Strange noises from your air conditioner should always be investigated. There’s a high probability that whatever’s causing the noise can lead to more damage if it isn’t taken care of soon.
We’ll list some of the most common noises below and explain what the issues might be.
If your cooling costs are rising every month, don’t be so quick to assume that it’s due to excess use. Unless you’re using a smart thermostat or regulating temperatures very closely every day, it would be difficult to truly assess whether you’ve been using more energy than usual.
Air filters are one of the simplest components in your entire HVAC system. Yet, simply neglecting to replace it can bring complete destruction and chaos to your system.
What’s the point of an air conditioner if it doesn’t emit a refreshing blast of cold air? While this problem isn’t common, it’s not unheard of. In fact, many kinds of air conditioner problems can result in low or warm air flow from your air conditioner. If you’re having any kind of air flow problems, the next best step is to call for 
There’s a number of reasons for why you could be getting low air-flow from your air conditioner. Admittedly, not all of them will require you to drop what you’re doing and immediately call an AC repairman. At the same time, some of them actually do require immediate attention, and ignoring them is the last thing you’d want to do.
