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Why is My A/C Making Weird Noises?

Hearing strange noises from your air conditioner can be unsettling, especially during a heatwave when a breakdown is the last thing you need. If your A/C unit starts to make unusual sounds, it’s important to identify and address the issue quickly to avoid potential damage or costly repairs. Let’s explore some common noises and what they might indicate about your air conditioner’s health.

Banging or Clanking

A banging or clanking noise is one of the most common complaints from homeowners. This sound often suggests that there is a loose or broken part inside the unit, such as a connecting rod, piston pin, or crankshaft. It could also indicate that the indoor blower is unbalanced. Ignoring this noise can lead to more serious damage over time, so it’s best to call in a professional from S&L Prime to inspect and repair the issue.

Hissing or Whistling

If you hear a hissing or whistling sound, it might mean there’s a refrigerant leak. This is a serious issue as it can not only compromise your unit’s efficiency but also pose health risks due to the harmful nature of refrigerants. In some cases, hissing can also indicate a problem with the expansion valve or a malfunctioning compressor. Either way, it’s crucial to contact a technician from S&L Prime to diagnose and fix the problem.

Rattling

Rattling noises usually point to loose debris or components inside the A/C unit. Sometimes, it could be as simple as a loose screw or a piece of debris that found its way into the system. However, it could also be a sign of a deteriorating motor or fan blade. If the rattling persists after cleaning the unit, it’s advisable to have it checked by a professional to prevent any potential breakdowns.

Clicking

While it’s normal to hear a clicking sound when your A/C turns on and off, continuous clicking is not a good sign. This could indicate an issue with the electrical components, such as a failing thermostat or a malfunctioning relay. Electrical issues are best handled by professionals to avoid the risk of electrical shock or further damage to the system.

Squealing or Screeching

A high-pitched squealing or screeching noise can be alarming. This sound is often caused by a worn-out belt or issues with the motor bearings. If the noise is coming from the outdoor unit, it could be the fan motor. Timely attention is crucial as these parts can break down completely, leading to a total system failure.

Consult With a Professional HVAC Company

Unusual noises from your air conditioner are more than just an annoyance—they’re a sign that something may be wrong. While some issues are minor and can be easily fixed, others can lead to significant damage if not addressed promptly. It’s always best to consult with a professional from S&L Prime to accurately diagnose and repair any issues. Regular maintenance can also help prevent these problems, ensuring your A/C runs smoothly and quietly throughout the year.

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