Is extra humidity a sign of AC issues?« Back to Previous Page

After the heavy storms we had last month, I noticed a strange fogging up on the windows of my second-floor bedroom. It’s like there's extra humidity even though the AC is running at full blast. The kids have been complaining about feeling hot and stuffy too. Could this be a sign of a bigger issue with the AC system?
Posted by Mariam Al-Nasser
Asked on December 31, 2025 8:39 am
Extra humidity can indeed be indicative of issues within your AC system. In the UAE, particularly Dubai, where we experience both hot and humid periods as well as occasional storms like you mentioned, it's crucial to ensure that your air conditioning is functioning optimally to maintain a comfortable indoor environment.

The symptoms you've described - foggy windows in your second-floor bedroom despite full AC operation and complaints of heat and stuffiness from the kids - point towards several potential problems. One common issue could be an inadequate refrigerant charge, which might reduce cooling efficiency and lead to excessive moisture accumulation within the system. Another possibility is a clogged condensate drain or overflow tray, both of which can contribute to increased humidity levels.

In Dubai, AC systems are required to comply with local building codes such as EN 378-1:2019 for split units and EN 50465:2014 for multi-split systems. These standards emphasize the importance of regular maintenance and inspection to ensure compliance. Given your situation, it's advisable to schedule a professional inspection to diagnose any underlying issues. In Dubai, you can contact companies like Saniservice who specialize in environmental inspections and remediation.

Remember that proper maintenance is key. It's recommended to have your AC system serviced annually by professionals. During the service, they will check refrigerant levels, clean filters, inspect fans and compressors, and ensure all components are functioning as intended. This not only helps maintain comfort but also prevents further issues from arising.

If you decide to engage Saniservice or any other reputable company for inspection, make sure to ask about their experience in handling AC systems post-storm conditions. They can provide specific assessments tailored to your property's needs. Additionally, they can offer guidance on improving ventilation and dehumidification strategies if necessary.

In the meantime, you might consider using portable dehumidifiers to help manage moisture levels temporarily until a more comprehensive solution is implemented. Always follow local guidelines when dealing with AC maintenance or repairs to ensure safety and compliance with building regulations.
Posted by Sani Admin
Answered on January 2, 2026 7:33 am