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Peaden Air Conditioning, Plumbing & Electrical Blog

Listen for These Warning Sounds of a Malfunctioning AC


Your home’s AC is crucial for making it through our hot and humid summers. With all the work that your air conditioning system takes on, it can develop malfunctions over time. If you recognize the early warning signs of problems, you can act fast with professional air conditioning repair in Mobile, AL that will stop the situation from worsening until you have a completely failed AC.

One of the most telltale signs that something is amiss with your AC is unusual noises. Paying attention to these warning sounds can help you address problems early and avoid costly repairs or replacements. Here are the key warning sounds to listen for:

1. Banging or Clanking

These sounds are often a sign that a component has come loose or is broken inside the compressor. Loose parts can cause significant damage if not addressed promptly. In some cases, it might mean the compressor itself is failing. This requires immediate attention from a professional HVAC technician.

2. Squealing or Screeching

A high-pitched squealing or screeching sound usually points to a problem with the motor or blower assembly. It could be due to a worn-out belt, lack of lubrication, or a malfunctioning motor bearing. Regular maintenance can help prevent these issues by ensuring all moving parts are properly lubricated and belts are in good condition.

3. Rattling

Rattling sounds are commonly associated with loose debris or parts within the AC unit. It could be as simple as a loose cover panel or a more serious issue like loose components in the fan or motor. Ignoring this sound can lead to further damage, so it’s important to have it checked out by a professional. 

4. Hissing or Bubbling

Hissing or bubbling sounds typically indicate a refrigerant leak. This is a serious issue that can compromise your AC’s efficiency and lead to increased energy bills. Refrigerant leaks can also cause damage to the compressor, leading to expensive repairs. If you hear hissing or bubbling, turn off your AC and call a professional immediately. Handling refrigerant requires specialized training and equipment, so it’s best left to the experts.

5. Clicking

While it’s normal to hear a clicking sound when your AC turns on or off, continuous clicking isn’t normal. This could be a sign of an electrical issue, such as a problem with the control board. Electrical issues can be dangerous and should be addressed by a professional HVAC technician to avoid potential hazards.

6. Buzzing

A persistent buzzing noise can stem from various issues, including loose parts, electrical problems, or a failing motor. It could also be a sign of debris inside or around the unit, or issues with the condenser coil. Regular maintenance and cleaning can help prevent buzzing noises by ensuring all components are in good condition and free of debris.

By keeping an ear out for these warning sounds and addressing them promptly, you can extend the life of your air conditioning system and maintain a comfortable indoor environment. Trust Peaden for all your HVAC needs, and let us help you stay cool and worry-free all year round.

Call today to discover The Peaden Way: Service Is Our Passion, Safety Is Our Priority, Satisfaction Is Our Promise.

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