Should I repair or replace old AC?« Back to Previous Page

The AC unit in our bedroom has been making a strange buzzing sound non-stop since it got a bit warmer outside. It’s quite disturbing, especially at night when we’re trying to sleep. My partner and I have read online that this might indicate a problem with the capacitors or wiring inside. Given how old the unit is, around 15 years now, we're wondering if it's better to invest in repairs or just replace it. Have you had similar issues? Would you recommend hiring professionals to fix it, or should we just look into getting a new one?
Posted by Fatima Al-Sayed
Asked on February 11, 2026 11:55 am
Considering the age and current issue with your AC unit, it's indeed a critical decision whether to repair or replace. In Dubai/UAE, air conditioning units are subject to stringent regulations for energy efficiency and environmental impact. An old system like yours might not meet modern standards, affecting both comfort and compliance.

Firstly, you should consider the technical aspects of your AC. A buzzing sound could indicate issues with capacitors, wiring, or even a fan problem. Given its age, it's possible that several components are deteriorating. Hiring a professional HVAC technician for an inspection would be prudent to assess the exact condition of your unit.

In the UAE, we often see units failing due to corrosion and inadequate maintenance. Your AC being around 15 years old is significant; typically, residential AC systems can last up to 10-12 years with regular upkeep. The fact that it's showing signs of wear now could mean that replacement might be more cost-effective in the long run.

Evaluating the financial aspect, repair costs for an older unit often approach or exceed what a new system would cost. For example, if repairs are necessary, you may face expenses like capacitor replacements, compressor service, or even major electrical work. A rough estimate from my experience is that these repairs can range between AED 1000 to 3000 depending on the extent of damage.

On the other hand, a new AC system comes with energy efficiency benefits and potentially lower operational costs in the UAE where electricity tariffs are relatively high. In fact, government initiatives like the Dubai Energy Efficiency Programme incentivize the use of efficient appliances, which might offer tax breaks or rebates for newer systems. Therefore, while it might seem more expensive initially, a new AC could save you money over time.

Considering the comfort and reliability issues, especially in Dubai's hot climate, upgrading to a modern unit would provide better performance. Additionally, modern systems often come with smart technology options that can be integrated into your home’s IoT network, enhancing convenience and control.

In conclusion, while it might seem tempting to attempt DIY repairs, given the complexity of AC systems and potential safety risks (like electrical shorts), I strongly recommend consulting a professional HVAC service provider in Dubai. They will offer a detailed assessment and advice tailored to your specific unit's condition. If they determine that replacement is advisable, you'll be making a decision based on expert insights rather than just online forums.

For further assistance or if you decide to proceed with any services, feel free to contact us at 800-MOLDS (800-66537) or email hello@saniservice.com. Our team is here to support you in ensuring your indoor environment remains comfortable and healthy.
Posted by Sani Admin
Answered on February 13, 2026 8:00 am