Heating and Air Quality Advice

Five Reasons Your Air Conditioner Could Be Making Noise

Posted by Jennifer Rushing on Thu, Jun 02, 2016 @ 11:33 AM

 

Air conditioners need regular maintenance in order to stay continuously efficient. Without regular maintenance, you will encounter issues with its performance or your electric bill may be rising because your air conditioner is doubling, perhaps tripling its efforts in cooling your home or office.

 

Another problem that you may encounter with your air conditioner is the noise. Is your air conditioner noisy and becoming a nuisance? If so, you might find the information below helpful.

 

1. Fans are already dirty or out of alignment.

 

If the air conditioner’s fans have accumulated too much dirt or dust or their alignment is disturbed, you will hear some buzzing or a humming sound. This sound needs instant attention as it could indicate that your unit needs lubrication. Persistent humming can cause serious damage to the entire unit, which can be costly.

 

2. Fencing and fasteners used may already be loose.

 

Air conditioners are enclosed in a soundproof and well-cushioned material to make it noiseless as possible when in use. The fasteners and the fencing are applied during installation. These tools are designed for absorption of vibrations during the air conditioner’s usage, but they do not last a lifetime. In time, some parts start to fail and the noise begins. But the type of the noise produced varies according to the problem.

 

3. Some of the air conditioner’s internal components are loose.

 

If the type of noise produced by your air conditioner is clanking or banging, this indicates that a few of the unit’s parts are gone loose. These parts may be its connecting rod or the crankshaft, either of which may already be worn out from constant usage. In some cases, the issue may be that the tightening bolt may have come loose. If such is the case, the solution is simply to tighten the bolt. If it cannot be resolved with tightening because the bolt is damaged, the part may be replaced.

 

4. Leakage in refrigerant line.

 

If your unit’s refrigerant line leaks, you might hear a bubbling sound or high-pitched hissing. This problem also needs an immediate attention as it will lead to further damage.

 

5. Misc. loose parts.

 

If the type of sound you hear is rattling or clicking, which is very common, the cause can be loose bolts, broken springs or damaged, rattling tubing. These parts may be tightened by a professional if they are loose. But if the clicking sound persists, it can be a sign that the thermostat has already blown out. The rattling or clanking sound begins when the compressor’s position is shifted. A professional technician will need to look into realigning or repositioning the compressor.