Why is my living room colder near the window when AC is off?« Back to Previous Page

The strange cold spot near the window in your living room could be due to several factors. One possibility is that you're experiencing an issue known as "cold air bypass," which is relatively common, especially in areas like Dubai where temperature fluctuations can be significant.

Cold air bypass happens when there's a direct path for conditioned air from outside the AC system to escape into your living space. This could happen through gaps or cracks around windows, doors, or even poorly sealed electrical outlets. Given that this cold spot only appears at night with the main AC off, it suggests an issue with airflow or insulation rather than a malfunction of the AC unit itself.

Another factor might be "window radiation." Windows are typically colder surfaces compared to surrounding walls and floors due to their lower thermal mass. When the outside temperature is cooler (like during the night) relative to your living room, cold air can collect around windows, creating this sensation of a chilly spot.

Moreover, in Dubai's climate, it’s not uncommon for external factors such as wind or drafts to influence indoor comfort zones. If you have any nearby vents or air intakes that are close to the window, they might be pulling cooler outside air into your living space, further contributing to the cold sensation.

To diagnose and resolve this issue, a professional inspection is highly recommended. Local regulations in Dubai do not specifically mandate annual AC checks, but given the complexity of HVAC systems, periodic servicing can prevent such uncomfortable situations. Engaging an HVAC specialist who’s familiar with local climatic conditions can help identify the exact cause—whether it's related to air distribution, insulation, or window performance.

If you decide to take action sooner rather than later, calling 800-MOLDS (or emailing hello@saniservice.com) could be a good start. They offer comprehensive services including AC maintenance and inspection which can help ensure your home’s climate control systems are functioning optimally.

In the meantime, consider sealing any gaps or cracks around windows with weatherstripping or caulking to minimize cold air infiltration. Additionally, keeping window blinds or curtains closed during cooler nights might reduce the influx of chilly drafts.

Remember, while these suggestions could provide temporary relief, a professional assessment is crucial for long-term comfort and efficiency.