Is faulty AC unit causing poor air quality?« Back to Previous Page

After the intense heatwave last week, I noticed a strange smell coming from the air conditioning unit in my bedroom. The AC has been making this loud, rattling noise that gets louder with each passing day. My kids have been coughing more frequently, and I suspect it might be related to the poor air quality from the faulty system. How urgent is it to replace or repair the AC unit?
Posted by Juergen De Vries
Asked on January 14, 2026 4:56 am
The faulty AC unit certainly could be the culprit behind your concerns regarding poor air quality and increased coughing among family members. In the UAE context, specifically Dubai, where climatic conditions are often extreme, ensuring a properly functioning air conditioning system is crucial for maintaining indoor environmental quality.

Firstly, it's essential to understand that an improperly working AC unit can lead to various issues including the accumulation of dust, mold growth, and the spread of contaminants. In your case, the presence of a strange smell along with the loud rattling noise strongly suggests a need for immediate attention. These symptoms may indicate issues such as a clogged filter, refrigerant leak, or even more serious problems like compressor failure.

Given the UAE's regulations concerning indoor environmental quality and air conditioning systems (as per the Federal Decree-Law No. 14 of 2006 on Building Construction and Real Estate Development), it is imperative to address these issues promptly to prevent potential health risks for occupants.

I would highly recommend scheduling a professional inspection by certified HVAC technicians who can diagnose the exact issue with your AC unit. They will be able to clean or replace filters, check refrigerant levels, and identify any signs of mold or other contaminants that could affect air quality. In Dubai, companies like Saniservice (email: hello@saniservice.com) are known for their expertise in such matters.

Moreover, it's crucial to ensure regular maintenance of your AC units to prevent similar issues from recurring. This includes cleaning the external unit and ensuring proper drainage to avoid water accumulation, which can lead to mold growth. Additionally, consider investing in air purifiers or humidifiers if recommended by your HVAC professional to further improve indoor air quality.

Given that your kids are experiencing more frequent coughing, it's also advisable to monitor their health closely and consult a medical professional if symptoms persist despite addressing the AC issue.

In conclusion, while DIY troubleshooting can sometimes help, for a system as complex as an air conditioning unit, especially when issues like smell and noise are involved, professional intervention is highly recommended. Contact Saniservice or your local HVAC service provider today to ensure you're taking the necessary steps towards improving indoor air quality in your home.
Posted by Sani Admin
Answered on January 16, 2026 9:13 am