Broken AC? Here Are 6 Common Issues and Solutions

by - August 30, 2023

The sweltering heat of summer can quickly turn your home into an unbearable sauna if your trusty AC unit decides to call it quits. We've all been there – that dreaded moment when you flip the switch, only to be met with a disappointing blast of hot air. But fear not, for you're not alone in this battle against the broken AC! In this blog post, we're going to explore the six most common issues that can plague your air conditioning system and provide you with practical solutions to beat the heat. So, whether you're sweating it out right now or just want to be prepared for the inevitable, read on to discover how to stay cool when your AC is acting up.

Not Turning On

When your air conditioning system fails to start, it can lead to discomfort, especially during hot summer days. This issue could stem from electrical problems or thermostat malfunctions. Electrical issues may involve tripped circuit breakers, blown fuses, or faulty wiring. Checking and resetting circuit breakers can sometimes resolve the problem.

However, if the issue persists, it might be related to a malfunctioning thermostat, which could necessitate professional attention. As seen at, an HVAC technician will thoroughly inspect your thermostat to identify any wiring or calibration issues. They will then calibrate or replace the thermostat as needed to ensure your heating and cooling system operates efficiently and maintains a comfortable indoor environment.

Not Cooling Properly

When your air conditioner is running but fails to deliver the expected cooling, various factors might be at play. Dirty air filters can obstruct proper airflow, reducing cooling efficiency. Regular filter cleaning or replacement is essential to ensure optimal performance. Another common culprit is a refrigerant leak, which not only diminishes cooling but can also harm the environment. Inadequate insulation in your home can lead to heat infiltration, straining your AC.

Addressing this requires reinforcing insulation in walls, attics, and ducts. To regain the cooling comfort you desire, promptly address these issues by cleaning filters, seeking professional refrigerant leak repair, and improving insulation.

Strange Noises

Unusual sounds emanating from your air conditioning unit can be both bothersome and indicative of potential problems. One common source of noise is noisy fan blades, often caused by debris or misalignment. Regular cleaning and maintenance can help mitigate this issue. Loose or damaged parts within the AC system, such as loose screws or worn-out components, can also generate strange noises.

These should be promptly repaired or replaced to prevent further damage. If your AC continues to produce abnormal sounds, it's advisable to consult a professional technician who can diagnose the problem accurately and ensure that your cooling system runs smoothly and quietly.

Blowing Hot Air

When your air conditioner is supposed to deliver refreshing coolness but instead blows warm air, it can be frustrating and uncomfortable. Often, this issue can be attributed to incorrect thermostat settings, where the AC might be set to "heat" mode accidentally. Simply adjusting the thermostat to "cool" can solve this problem.

However, if the settings are correct and warm air persists, it could signify refrigerant issues. A low refrigerant level can hinder the cooling process, and addressing this requires professional intervention to identify and fix any leaks and recharge the refrigerant. For a swift return to cool comfort, it's advisable to consult an HVAC technician when experiencing this problem.

Freezing Up

An unexpected issue with air conditioning systems is when they freeze up, quite literally. This occurs when the evaporator coil inside the unit becomes excessively cold due to restricted airflow or low refrigerant levels. Restricted airflow can result from dirty filters, obstructed ducts, or a malfunctioning fan. Additionally, low refrigerant levels hinder the heat exchange process, causing excessive cooling that leads to freezing.

To resolve this, start by replacing or cleaning air filters and ensuring proper airflow. If the issue persists, consult a professional technician who can diagnose and repair refrigerant leaks, as well as address any underlying problems that might be causing your AC system to freeze up, ensuring efficient and reliable cooling.

Water Leaks

Discovering water leaks around your air conditioning system can be disconcerting. Typically, these leaks are caused by either a clogged drain line or a frozen evaporator coil. A clogged drain line prevents the condensation produced by your AC from draining properly, leading to leaks. This issue can often be resolved by clearing the drain line of debris or buildup.

Conversely, a frozen evaporator coil can also result in water leakage as it thaws. Ensuring proper insulation and regular maintenance can help prevent coil freezing. Addressing water leaks promptly is crucial to prevent damage to your home and maintain the efficiency of your AC system.

Maintaining a well-functioning air conditioning system is essential for comfort during hot seasons. Recognizing and addressing common AC issues is key to ensuring efficient cooling and preventing costly repairs. Whether it's improper cooling, strange noises, failure to turn on, blowing hot air, freezing up, or water leaks, prompt attention and, when necessary, professional assistance can help resolve these problems. Regular maintenance and preventive measures can also extend the lifespan of your AC system, ensuring that it continues to provide reliable and cool relief during sweltering weather.

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