Why is my AC not cooling? Possible causes and solutions
∙ min read
Is your air conditioner running, but you don't feel the cold air? This common problem frustrates many homeowners and businesses yearly, especially during the warmer months. An air conditioner that isn’t cooling correctly affects comfort and can signal underlying issues that need immediate attention.
Understanding and identifying the possible causes can help maintain a cool space and ensure your system runs optimally. In this Max Warehouse article, we explore the most frequent reasons why an air conditioner might not be cooling your space as it should and provide practical solutions for homeowners and HVAC maintenance businesses.
Possible causes for a non-functioning air conditioner
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Dirty or clogged air filter: a dirty or clogged air filter can restrict airflow and significantly reduce the system's efficiency. This can prevent cold air from circulating properly throughout your home.
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Low refrigerant levels: refrigerant is the liquid your air conditioner uses to remove heat and humidity from the air in your home. If there's a leak and the refrigerant level is too low, the system won’t be able to cool the air efficiently.
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Compressor issues: the compressor is an essential part of the air conditioning system that moves the refrigerant needed to cool the air. The air conditioner won't cool correctly if the compressor is damaged or fails.
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Dirty or blocked condenser coils: condenser coils release the heat outside. If they are dirty or blocked by debris, they won’t be able to dissipate heat efficiently, affecting the system's cooling capacity.
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Faulty or misconfigured thermostat: sometimes, a faulty or misconfigured thermostat can cause your air conditioner to malfunction. Ensure it is set to “cool” and the temperature is appropriately adjusted.
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Electrical issues: faults in the switches or electrical circuits can prevent the air conditioner from functioning correctly. This may require professional intervention to ensure all electrical components are in order.
Solutions to common AC cooling problems
For homeowners
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Perform regular inspections and cleanings of your air conditioner, especially before the heavy-use season. Make sure to clean or replace the air filters every one to two months, depending on usage and manufacturer recommendations.
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Ensure it is set to the correct setting (cooling mode) and programmed to an appropriate temperature. Consider upgrading to a smart thermostat to optimize cooling efficiency.
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Check for obstructions around the indoor and outdoor air conditioning units. Keep the area around the external condenser clear to ensure adequate airflow.
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Ensure your home is well insulated, and that windows and doors are properly sealed to keep the cool air and heat out.
For HVAC maintenance technicians
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Use diagnostic tools like pressure gauges and thermometers to check the system's pressure and temperature levels, ensuring the refrigerant is at the correct levels. Infrared thermography can help detect blockages or leaks.
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Thoroughly clean the evaporator and condenser coils. Use HVAC-specific cleaning solutions that won’t damage components and will improve system efficiency.
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After repairing any leaks, recharging the system with the appropriate amount of refrigerant according to the manufacturer's specifications is crucial.
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Assess the need to upgrade outdated or inefficient components, such as fans, compressors, or thermostats, to enhance the system's efficiency.
These tips can help homeowners and technicians maintain air conditioning systems effectively, ensuring proper cooling and extending the equipment's lifespan.
Max Warehouse: your one-stop HVAC solution provider
We have air conditioner supplies, cleaners, parts, and tools for your home or business. Our extensive catalog of products in different categories ensures you find everything you're looking for in one convenient place.
We have also developed a program for maintenance industry professionals and business owners.
Our Max Pro program offers attractive bulk discounts for companies looking to buy wholesale. Our program is also designed to provide several unique benefits that make your procurement process more efficient and cost-effective.
Join Max Pro program today and enjoy the convenience of finding everything you require for your business at Max Warehouse. Shop with us and experience the difference firsthand.
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Sources:
- https://www.bobvila.com/articles/air-conditioner-not-cooling/
- https://sealed.com/resources/ac-not-working/
