Top 5 Air Conditioner Problems Homeowners Face

A close-up of a ductless air conditioning unit above a curtain with droplets of refrigerant leaking from the vents.

Air conditioners are essential appliances that keep our homes cool and comfortable, especially during the hot summer months. However, like any other mechanical system, they encounter problems that disrupt their functionality, and understanding these issues helps homeowners identify and address them promptly, ensuring their AC unit operates efficiently. Discover the top air conditioner problems that homeowners face, and learn how to avoid or resolve them.

1. Poor Airflow

Poor AC airflow is a common issue for many homeowners. This problem manifests as weak airflow from the vents, making it challenging to cool the space effectively.

Several factors contribute to poor airflow, including clogged air filters, blocked ducts, or issues with the blower motor. Regularly clean or replace air filters, ensure unobstructed vents, and schedule professional maintenance to thoroughly inspect the system.

2. Refrigerant Leaks

Another common issue that homeowners may encounter is refrigerant leaks in their air conditioning units. Refrigerant plays a crucial role in the cooling process, and low levels result in decreased cooling performance and increased energy consumption.

Detecting refrigerant leaks requires professional expertise, as handling refrigerant is hazardous. Look for signs of reduced cooling capacity, hissing noises, or ice buildup on the refrigerant lines, and promptly contact the HVAC professionals at W.F. Smith for services such as ductless AC repair. Our experts have the skills and knowledge to find and repair refrigerant leaks.

3. Thermostat Problems

Issues with the thermostat significantly impact the efficiency of an air conditioning system. Incorrect temperature readings, unresponsiveness, or erratic cycling indicate a malfunctioning thermostat.

Calibrating or replacing the thermostat, checking that it’s away from heat sources, and ensuring you set it correctly help resolve these issues. Smart thermostats offer added convenience and control, allowing homeowners to optimize their cooling settings for comfort and energy savings.

4. Frozen Evaporator Coils

Frozen evaporator coils are a common issue resulting from restricted airflow, low refrigerant levels, or dirty coils. When the evaporator coils freeze, the AC unit may blow warm air or fail to cool the space adequately.

Turn off the system to defrost the coils, check for airflow obstructions, clean the coils, and address refrigerant issues. Keep up with maintenance by periodically cleaning coils and checking refrigerant levels to prevent this recurring problem.

5. Electrical Component Failures

Electrical component failures, such as malfunctioning capacitors, worn-out contactors, or faulty wiring, disrupt the operation of an air conditioning system. These issues may cause the unit to cycle frequently, produce unusual noises, or fail to start altogether. Homeowners should refrain from attempting DIY repairs on electrical components due to safety risks and instead rely on our licensed HVAC technicians to diagnose and resolve these issues promptly.

Being aware of the common air conditioner problems that homeowners face is instrumental in maintaining a comfortable indoor environment. By addressing these challenges proactively, you’ll enjoy reliable cooling performance and energy efficiency throughout the year.

W.F. Smith HVAC testimonial

Great service, very happy. This is our second Lennox unit from them.