There are a number of reasons your air conditioning system might be making strange noises. In the best case scenario, these noises mean that something is just out of place and needs to be adjusted or replaced; in the worst case scenario, they indicate serious problems with your AC unit that could put you at risk for expensive repairs or worse.
Here are four reasons your air conditioner might be making strange noises.
1. The Condenser Is Dirty
Your condenser is the part of the system that sits outside in front of your house and produces cold air. It's important to keep this part clean because any dirt or debris will cause more strain on your system and shorten its lifespan. There are two ways that dirt can get into your condenser: through the air vents and through the drain pan at the bottom of it. If there's dirt accumulated in either of these locations, then it could be causing problems with how well your AC works, which could lead to loud rattling noises from inside the unit itself.
2. There's An Issue With The Fan Blade Or Compressor Of Your Air Conditioning
System. If your AC is making loud rattling noises, then it could be because of an issue with the fan blade or compressor. The fan blade is what pushes air through the vents and into your home, so if this breaks or stops working properly, then you won't get cool air coming out of them. A broken compressor can cause similar problems as well—it's what pumps refrigerant around inside your HVAC system. Call a professional If you're unsure of what's causing the rattling noise and you don't want to risk doing any further damage.
3. The Compressor Is Leaking
If you hear a loud hissing noise coming from your air conditioner, then it could be because the compressor is leaking. This will cause refrigerant to leak out of the unit and onto your floor, which can be extremely dangerous if not dealt with quickly.
4. There Is An Electrical Short In Your Air Conditioning System
If you hear a loud buzzing or humming noise coming from your HVAC system, then it could be because there is an electrical short in the unit. This can happen if there's moisture inside the air conditioning system that causes corrosion on wires or when something breaks and shorts out.
If you hear any strange noises coming from your air conditioner, it's best to call an HVAC professional as soon as possible. The contractor can inspect your air conditioning system.
Welcome to my blog which covers a wide range of HVAC topics. I'm Josh and I live in Perth, Australia. I never really used to think about the HVAC system in my home. I believed that when it was hot the HVAC system would cool me down and when it was cold it would warm my house up. However, all that changed one day when the HVAC system went crazy. It began to blow hot air into my house on the warmest day of the year. The contractor I called out said that one of the sensors had broken. He explained how I could better maintain my HVAC system so I decided to start this blog.