Air conditioning is synonymous with comfort, but when it starts making noise, it can be annoying and a sign of problems. Strange sounds do not always mean a serious defect, but it is important to investigate to avoid major failures and losses in the future.
Popping Noises: Expansion of Materials
One of the most common noises in air conditioning units is popping. This sound usually occurs when the equipment is turned on or off. It is due to the expansion and contraction of plastic and metal parts, caused by changes in temperature. It is a normal noise, but if it is frequent and intense, it is worth having a technical check.
Continuous Buzzing: Fan Problems
If your air conditioning makes a constant buzzing noise, the internal or external fan may have accumulated dirt, be unbalanced or have worn bearings. This type of noise may also indicate that there are objects obstructing the rotor. Cleaning and preventive maintenance are essential to resolve this type of noise.
Metallic or Knocking Noise: Loose Parts
When the sound resembles a metallic knock, it may be that internal screws or supports are loose. This problem can worsen with continued use and cause greater damage to the motor or propellers. If you notice this noise, turn off the appliance and call a specialized technician to inspect the system.
Hissing or Whistling Sound: Gas Leak or Air Flow Problems
A hissing sound may be a sign of a refrigerant gas leak or obstructions in the air duct. In both cases, the appliance's operation is compromised. Gas leaks, in addition to reducing the efficiency of the system, can affect the environment and health. Flow problems may be caused by dirty or poorly fitted filters.
Conclusion: Noises Should Be Taken Seriously
Air conditioning noise should never be ignored. Even sounds considered common can indicate worn parts or the need for maintenance. The best way to avoid problems is to keep it clean, perform periodic checks and count on a qualified professional whenever something unusual occurs. Taking good care of your device ensures greater comfort, savings and durability.
