Common Reasons Why Your AC Won’t Turn On

August 4, 2022


Summer is not the time for your AC to stop working. When it gets hot, the last thing anyone wants is to have to deal with a malfunctioning air conditioner.

There are many reasons why an air conditioner system may break down, and most people are aware of these reasons. Unfortunately, only a few know what to do if their AC won’t turn on at all.

In the summer, an AC unit is the king of every household. Everyone wants it to work perfectly, but for that, you need to treat it like a king. If you want your AC to work perfectly fine, you need to hire a certified HVAC contractor and get professional air conditioning maintenance services. With proper care and maintenance, your air conditioner will work faultlessly fine throughout the summer season.

Also Read: Why Is Your AC Indoor Unit Leaking?

Moreover, if your family has seniors, infants, or someone with a chronic illness, no AC on a hot summer day can be a health risk. In such cases, you will need the immediate assistance of professional HVAC contractors who will help you get out of such scenarios.

If you are unaware of the reasons behind the malfunctioning of an AC, don’t worry. In this blog post, we will outline the common reasons why your AC isn’t turning on.

Common Reasons Why Your AC Won’t Turn On

Here are the most common reasons why your AC won’t turn on:

Circuit Breaker

If your AC isn’t turning on, then the first thing you should check is the circuit breaker. Sometimes, the circuit breaker gets tripped, and the AC stops working. To fix this issue, you will have to reset the circuit breaker. If it trips again, you will have to call a certified HVAC contractor.


Another culprit of a malfunctioning AC unit is the thermostat. So if your AC is not working, make sure to check if the thermostat is on the cool settings and the temperature is lower than the outdoor temperature.

Also, if you change the thermostat settings but still don’t hear the click sound, then it is an indication that your thermostat is not working properly. To fix this problem, you will have to hire a certified HVAC company.

Air Filter

Sometimes, even the most diligent homeowners forget to change their air filters. If your air conditioner’s air filter is clogged with airborne dirt and dust particles, then your AC unit will refuse to start and will overheat. You can fix this issue by cleaning the filter yourself or can even call a professional HVAC expert.

Common AC Problems That Require Professional AC Repair

Here are some of the most common AC problems that can only be fixed by professional HVAC contractors:


If your AC refrigerant is leaking, your air conditioner will continue to operate until it reaches a point where it will either stop working or repeatedly freeze up.

So if your air conditioner is working fine but suddenly starts blowing warm air, or you start hearing hissing noises from the AC unit, then shut it down immediately and call a professional HVAC contractor.

Condensate Line

The condensate line and the drain pan are responsible for removing all the moisture from the AC system. If they get clogged, they will cause the system to break down. And to protect itself, the AC will refuse to start.

So, if your AC is not turning on, then there are high chances that the condensate line or the drain pan is clogged. To fix this, you will need to get top-rated air conditioner repair services from a certified HVAC contractor.

Evaporator Coils

The evaporator coils are an integral part of your AC system. If they are not kept clean, they can cause considerable damage to your AC system.

Frozen or dirty evaporator coils will prevent your system from operating efficiently, and this will lead to high energy bills. The only way to avoid this problem is by getting high-quality air conditioner repair services from a certified HVAC contractor.

About Nor-Can Heating & Air

Get your AC installed safely by the heating and cooling Nor-Can Heating & Air professionals. We provide you with excellent HVAC services in an affordable way. We also provide 24/7 emergency services to ensure that your heating and cooling systems work properly throughout the year. Whether you are building a new house or need to repair the heating or cooling system in your old house or office in Edmonton, we are here to provide you with top-notch services. Contact us for more information.


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