Common Causes of an AC That Won’t Kick On

Common Causes of an AC That Won’t Kick On

Is your air conditioner refusing to turn on? This can be a huge inconvenience when temperatures start to rise but don’t fret— there are a few common causes that can be easily investigated and rectified. Keep reading to learn more about the common causes when an AC won’t kick on.

Thermostat Issues

One of the most common causes of an air conditioner not turning on is thermostat issues. If a thermostat is not properly calibrated or functioning, it won’t be able to activate the air conditioner. Thermostats can become faulty due to a variety of reasons, such as faulty wiring, dead batteries, or faulty components.

The first step to troubleshooting a thermostat issue is to check all of the wiring to ensure that it is all connected properly. If the wiring is faulty, it can cause the thermostat to malfunction. It’s also important to check the batteries in the thermostat. If the batteries are dead or low, the thermostat won’t be able to measure the temperature of the room accurately. If the wiring and batteries are all in order, then the problem might be with the internal thermometer. If you suspect an issue with a faulty thermostat, you should have it repaired or replaced by an HVAC technician.

Power Problems

Common Causes of an AC That Won’t Kick On

Power problems are common causes of an air conditioner that won’t turn on. Two of the most common issues that can cause this problem are tripped circuit breakers and blown fuses. A circuit breaker is a safety device designed to protect the air conditioner from being damaged by too much electricity. When the circuit breaker trips, the power going to the air conditioner is cut off, preventing the unit from turning on. Blown fuses can also cause power problems. Fuses are designed to break the electrical circuit if too much electricity is flowing through it, again protecting the air conditioner from being damaged.

Faulty wiring can also cause power problems. If the wiring to the air conditioner is faulty, it can prevent the unit from receiving the necessary power to turn on. Faulty wiring should be inspected and replaced by a qualified electrician in order to ensure the safety of the unit and the home. Power problems are one of the most common causes of air conditioners that won’t turn on and should be addressed immediately.

Clogged Air Filter

One of the most common causes of an air conditioner that won’t turn on is a clogged air filter. An air filter is designed to trap dirt, dust, and other air pollutants from entering your home’s air and heating system. Over time, this air filter can become clogged, reducing airflow and preventing the AC from cooling properly. In some cases, the filter may even become completely blocked, preventing the AC from turning on entirely.

You should check and replace your filter at least every 90 days. If you live in an area with a lot of dust or you have several pets, you might need to change your filters sooner. Clean filters will ensure that your system runs as efficiently as possible and contribute to healthier indoor air quality.

Compressor Problems

Common Causes of an AC That Won’t Kick On

One of the most common causes of an AC that won’t turn on is a faulty compressor. The compressor is the heart of the air conditioner, as it is responsible for circulating the cooling refrigerant throughout the system. If the compressor is not functioning properly, it can cause the AC to not turn on or only to blow warm air. A variety of issues, including a lack of lubrication, a defective motor, or an electrical problem, typically causes compressor problems. If the issue is not addressed quickly, it can result in costly repairs or even the need to replace the entire unit. To ensure that the compressor is running properly, it is important to check the lubrication level and inspect the electrical components regularly.

From a tripped breaker to a dirty air filter, there are many simple and inexpensive fixes you can try before calling in a professional to look at your AC that won’t turn on. However, if the problem is larger, it will need to be addressed by a professional as soon as possible. Regular maintenance of an AC unit can help prevent any issues from arising and ensure a safe and comfortable environment.

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