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Reasons Your AC Is Not Cooling Properly

When summer arrives, and the air conditioner is not working, the weather and your appliances join hands to elevate your discomfort. This issue is common among people, especially during the summer. Along with discomfort, your electricity bills may soar. It is important to understand the common causes of air conditioner cooling problems, as this helps take the necessary steps to resolve them.

Possible reasons behind AC not cooling properly

Regardless of the type of AC you have, there are some common reasons why your AC system is not cooling:

Clogged air filter

This is a problem that can be fully avoided, but it is the most common reason behind the altered cooling capacity of the AC. A dirty filter causes issues with airflow as it blocks its passage while also reducing the AC’s ability to pull in warm air. To prevent dust accumulation, clean the AC’s filter regularly.

Grimy condenser coil

An unclean condenser coil can obstruct airflow. The role of the condenser coil is to dissipate heat from the refrigerant, and the accumulation of dirt can reduce its heat transference capabilities as it blocks the coil. This blockage makes the appliance work harder. The issue can be avoided if the condenser coil is cleaned regularly.

Low refrigerant level

The refrigerant refers to the gas in the AC that absorbs heat from the room. When the refrigerant level drops, cooling can be affected. The levels can drop due to a leak. A hissing sound and ice formation on the refrigerant line can indicate this issue. To resolve it, a professional must be contacted.

Frozen evaporator coil

An evaporator coil is located inside the AC’s indoor unit, and it is another component that helps with AC cooling. When these coils freeze, the absorption of heat by the AC is affected. Common reasons for a frozen evaporator coil include low gas levels, dirty filters, and airflow issues. To resolve the issue, turn the AC off and switch the fan to ‘on’ mode. This can help melt the ice. If the problem is not resolved within a few hours, contact a technician.

Thermostat malfunction

The thermostat is responsible for controlling the AC’s temperature. When it does not function correctly, incorrect signals may be sent, which can cause cooling fluctuations or completely stop functionality.

Compressor failure

The compressor functions by pumping refrigerant through the system. Its malfunction can lead to complete cooling failure. To identify the issue, try to determine if the compressor attempts to start but fails repeatedly. If detected, call a professional immediately, as the problem may be serious.

Undersized AC unit

If the room where the AC is installed is too large for its size, it will not be able to cool the space effectively. It is therefore crucial for you to choose a medium-sized AC for a medium-sized room. Ensure that the AC is not oversized either, as it can create a sticky feeling and unevenly cool the room.

Conclusion

Before calling a professional for help, try to identify the reason behind the inefficient cooling. If you detect a minor cause, such as a clogged filter, the problem can often be resolved without professional assistance. If troubleshooting fails or if you suspect a more serious problem, contact a technician. Remember to undertake timely maintenance so that problems are detected early.

Frequently Asked Questions

faq1

faqsQuestions: Why is my AC running but not cooling?
faqsAnswer: If your AC stopped cooling but is still running, it may be due to issues such as a refrigerant leak, clogged air filters, incorrect thermostat settings, frozen evaporator coils, or an undersized AC unit.

faq2

faqsQuestions: Should I turn off the AC if it's not cooling?
faqsAnswer: Yes. If your AC is not cooling, it should be turned off. This helps prevent further damage to its coils or compressor. Running an AC that is not cooling can also increase energy consumption and cost of repairs.

faq3

faqsQuestions: How do I check my AC cooling?
faqsAnswer: To check your AC’s cooling, ensure the air filter is clean and inspect the condenser coils for any debris. You can use a thermometer to measure the temperature of the air that leaves the supply vent. Then compare the temperature readings from the supply and return vents.