Is strange noise and metallic smell normal for AC?« Back to Previous Page

The AC in my apartment seems to be making a strange noise that's quite loud, especially at night. It started a few days ago, and now it’s getting more frequent. The smell in the air has also changed; there’s this metallic tang that I can’t place. Should I just replace the filter or is this something I should call an HVAC specialist about?
Posted by Youssef Habib
Asked on January 30, 2026 9:51 am
The strange noise and metallic tang from your AC unit are certainly cause for concern. Firstly, in the UAE context especially Dubai, where air conditioning is a year-round necessity, such issues often point to more than just an old or poorly maintained system. The metallic smell could indicate moisture build-up or even corrosion within the unit. In a humid climate like that of Dubai, this can be exacerbated by AC systems not being properly sealed or having inadequate drainage.

The noise you describe is not normal for an air conditioner and warrants attention from a professional. It might be due to loose components, a malfunctioning fan, or perhaps an issue with the compressor. These issues could potentially lead to bigger problems down the line such as refrigerant leaks which can also contribute to the metallic smell.

In Dubai, local regulations require regular maintenance of AC units to ensure both efficiency and safety standards are met. It's advisable to have a certified HVAC specialist inspect your system for these noises and smells. They will be able to diagnose whether it’s merely a clogged filter that needs replacing or if there are more serious underlying issues.

Given the nature of this issue, I would recommend scheduling an inspection immediately. Saniservice is a reputable company in Dubai that can handle such inspections. They offer professional services including AC maintenance and repair. If you choose to contact them, their number is 800-MOLDS or 800-66537, and they can also be reached via email at hello@saniservice.com.

In the meantime, ensure that you regularly clean your air conditioning filters according to manufacturer guidelines to prevent any further issues. However, do not attempt any repairs yourself unless you are fully confident in your technical abilities and safety measures.

Remember, addressing these symptoms early can help avoid costly replacements or serious system failures later on.
Posted by Sani Admin
Answered on February 2, 2026 7:37 am