Common Residential Air Conditioning Repair Issues and Solutions

Maintaining a comfortable indoor environment is essential, especially during the hot summer months. Residential air conditioning systems in Glendale, AZ are vital for keeping homes cool, but they can develop issues over time that require repair. Understanding common air conditioning problems and their solutions can help homeowners ensure their systems run efficiently. Gotham Air is committed to providing reliable air conditioning repair services in Glendale, AZ for residential properties. Here are some of the most common residential air conditioning repair issues and how to address them.

1. Refrigerant Leaks

Issue: Refrigerant is crucial for the cooling process in an air conditioning system. Leaks can reduce the system’s efficiency and cooling capacity, leading to higher energy bills and inadequate cooling.

Solution: A professional AC technician can locate and repair the leak and recharge the system with the correct amount of refrigerant. Promptly addressing leaks is essential to prevent further damage to the system.

2. Frozen Evaporator Coils

Issue: The evaporator coil can freeze due to insufficient airflow, often caused by blocked air filters or ductwork issues.

Solution: Regularly changing or cleaning air filters can prevent this issue. If the coils freeze, turn off the system to allow the ice to melt and clean the filters or have a professional check for more serious airflow problems.

3. Dirty Condenser Coils

Issue: Condenser coils, located in the outdoor unit, can become dirty over time, reducing the system’s ability to expel heat effectively.

Solution: Clean the condenser coils annually to ensure efficient operation. This task can be performed by a homeowner or a professional during a regular maintenance visit.

4. Sensor Problems

Issue: Air conditioners have a thermostat sensor that measures the temperature of the air entering the evaporator coil. If the sensor is knocked out of position, the air conditioner can cycle constantly or behave erratically.

Solution: Adjust the sensor so that it is close to the coil but not touching it. If unsure, a professional technician can ensure it is correctly positioned.

5. Drainage Problems

Issue: During humid weather, the condensate drain can become clogged or backed up, causing water damage or high humidity levels inside the home.

Solution: Ensure that the drain is not clogged and is functioning properly. Clean the drain line regularly to prevent blockages.

6. Electrical Control Failure

Issue: The compressor and fan controls can wear out, especially when the system turns on and off frequently. Corrosion of wires and terminals is also a problem in many systems.

Solution: Regular maintenance checks by a professional can help identify and fix electrical issues before they lead to system failure.

7. Fan Problems

Issue: The fan that blows indoor air over the evaporator coil and the one that blows air over the outdoor unit’s condenser can wear out or develop issues.

Solution: If a fan isn’t working properly due to a faulty motor, lack of lubrication, worn belts, or debris buildup, it should be repaired or replaced by a professional technician.


Addressing common air conditioning issues promptly can extend the life of your system and ensure it operates efficiently. For residents in Glendale, AZ, Gotham Air emphasizes the importance of regular maintenance and professional air conditioning repairs to keep air conditioning systems in top shape. If you encounter any of these issues or need expert assistance, don’t hesitate to reach out for professional help.

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By staying proactive and knowledgeable about common air conditioning problems, you can ensure a comfortable and cool home environment throughout the year.