A Useful Guide: Why Aircon Compressors Stop Working

The blissful hum of an air conditioner cooling your home on a scorching day can quickly turn into a concern when it fails to deliver its soothing breeze. Often, the culprit behind a malfunctioning air conditioning unit lies within its compressor — the heart of the system responsible for circulating refrigerant and enabling the cooling process.

Understanding why aircon compressors stop working, identifying signs of a faulty compressor, and troubleshooting common issues can save you from sweltering in the heat.

How to tell if your aircon compressor is faulty

Spotting signs of a faulty aircon compressor can prevent further damage to your cooling system.

One tell-tale sign is warm air blowing from the vents despite the unit being set to cool. Unusual noises like clanking, hissing, or grinding can also indicate compressor trouble. Pay attention to any leaking refrigerant or a tripped circuit breaker, as these could point to compressor issues. Additionally, if your AC struggles to start or frequently cycles on and off, it might signal compressor malfunction.

Reasons why your aircon compressor stops working

Numerous factors can contribute to a malfunctioning aircon compressor. One primary cause is electrical issues, such as a faulty capacitor or a burned-out motor, disrupting the compressor’s ability to function correctly. Refrigerant leaks due to worn-out seals or damaged components also put a strain on the compressor, leading to inefficiency or failure. Moreover, improper maintenance, such as neglecting regular filter changes or allowing debris to accumulate around the outdoor unit, can hinder the compressor’s performance.

Troubleshooting aircon compressor issues

Before panicking and assuming the worst, some troubleshooting steps might help diagnose and possibly resolve minor aircon compressor issues. Start by checking the thermostat settings and ensuring they are correctly configured for cooling. Inspect the circuit breaker to see if it’s tripped and reset it if necessary. Clean or replace the air filter, as clogged filters can impede airflow, affecting the compressor. Additionally, examine the outdoor unit for any debris obstructing airflow or signs of refrigerant leaks. However, for complex issues or if you’re uncertain, seeking professional assistance is advisable to prevent further damage.

When troubleshooting fails to resolve compressor problems, seeking the expertise of trained professionals becomes crucial. Professional technicians have the knowledge and tools to accurately diagnose compressor issues and execute appropriate repairs or replacements. Attempting to tinker with complex components without expertise can exacerbate the problem and lead to costly repairs.


In the realm of air conditioning woes, a malfunctioning compressor can throw a wrench into your comfort.

That’s where PS Aircon Service steps in. With a reputation for reliability and expertise in aircon repair in Singapore, we offer comprehensive services to address all your cooling system needs. Our team of skilled technicians understands the intricacies of aircon compressors and can swiftly diagnose issues to restore your unit’s functionality.

Regular aircon maintenance from PS AirCon Service can prevent compressor breakdowns by ensuring proper lubrication, checking refrigerant levels, and identifying potential issues before they escalate. In cases of compressor failure, Our prompt and efficient repair services guarantee a quick resolution to get your aircon back up and running smoothly.

Whether you are looking for aircon servicing in Tampines or Woodlands, you can trust us to keep you cool and comfortable all year round. For more information, do not hesitate to get in touch with us today!

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