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Top A/C Sounds You Shouldn’t Ignore

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When your air conditioner starts making unusual noises, they should not be ignored. These noises are typically an indication that there is something wrong with your system, and if you hear one of these air conditioner sounds, you should contact an HVAC professional immediately to diagnose it and provide information on next steps. Of course, an A/C will make normal noises as well, such as humming in the summer, but one of the unusual sounds we talk about below should be cause for further investigation. 

Here at Blue Label Services, we are an HVAC contractor with a team of professionals providing high-quality heating and air conditioning to the greater Cypress community. Here are the top air conditioner sounds that you should not ignore.  

One of the most obvious indications that you need air conditioning maintenance is that your system is making whistling or hissing sounds. These sounds could be an indication that your air vent has too much air flowing through it or that the volume damper is closed or partially closed, which restricts the normal airflow. 

Another issue that can create a hissing noise is a refrigerant leak. These leaks can occur either inside a coil or line inside of your A/C unit and can cause inefficient cooling. Additionally, the chemical emitted can be harmful to inhabitants of your house. 

Another reason to contact an air conditioning contractor is if you start hearing a rattling or chattering sound from your A/C. Besides being annoying, a rattling noise is a sign that there is an issue with your air conditioner’s functionality. This noise could be an indication that there are loose screws or bolts, or that the fan blades are wearing down. 

While clicks in the A/C system are normal when the unit powers on or off, rapid fire or non-stop clicking can be a sign that there is something wrong with the unit. It’s often an indication of an electrical issue, such as bad capacitors or contactors, failing switches, or maybe even a faulty thermostat. 

If you hear a clicking sound that starts out slow and builds up over time, there may be an issue with your unit’s blower fan. A compressor issue is also possible if you’re noticing the clicking noise originating outside your home. 

If you hear the sound of dripping water in your walls, it requires immediate action. Dripping water is likely due to a water leak from your A/C’s indoor air handler. The drain line going from the air handler to the outside of your house may be blocked, cracked, or have come apart. Water leaks can result in damage to your sheetrock, floors buckling, and mold, so contact an HVAC repair company immediately. 

When you notice a problem with your cooling system, it is important to get it repaired right away. If you’re hearing one of these unusual noises, contact the professionals at Blue Label Services and we’ll come to your house for a checkup to make sure everything is working as it should be. 

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