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5 Reasons Your HVAC Fan Is Not Working

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When it comes to your HVAC fan not working, there could be several reasons contributing to that. Your HVAC system usually has two fans. One that is located outside your, which helps release heat while the second one is located inside the house, which blows cool air into your home. So, let’s look at some possible reasons as to why your air conditioner might not be working and should you call an HVAC repair service.

Capacitor Problems

The primary cause of your HVAC fan not working might be the capacitor. The capacitor is an electric component that is designed to store up energy and provides power to your air conditioner’s fans. These components breaking down is pretty common in air conditioners and fixing them is both easy and relatively cheap.

There could be several reasons behind your capacitor not working properly. In some cases, it might be as simple as fluctuation. Once the capacitor stops working it halts the functioning of the fans. Therefore, once it has gone bad, you will need to call in a professional who will open the unit and replace the capacitor. Make sure that you only call a certified AC technician.

Contactor Problems

Another probable cause is the contactor problem. A contactor is yet again another electric component that is designed to control the compressor and condenser motor fan. A contactor wearing out is also quite common in air conditioners and does not take much time to replace. If a contactor stops working, the outside fan of your air-conditioner will also stop spinning as well.

Removing a contactor and replacing it should only be done by an HVAC professional. It is not something that needs to be replaced regularly. Therefore, a professional will take a look into it and determine what might have caused the problem so that you can avoid it in the future as well.

Burnt Out Motor

The only thing that takes the most amount of beating on a daily basis is the fans, both inside and outside. There might be some other components as well but the fact of the matter is that the fans are almost directly exposed to the outside environment. Therefore, the external factors can significantly influence the life of the fan motors.

For instance, if you are living near a sea or a contaminated sewage line, your AC fan motor will develop rust and wear out much sooner than the average motors. The reason is that the contaminants and moisture will slowly eat away your motors along with other components. This is why homes nearby seas and other areas need regular replacing of the units.

A Loose Or Broken Belt

This should not be a problem if you have a loose or broken belt but if you happen to have a comparatively older HVAC model, then the belt coming loose or breaking is highly likely. Older systems are powered with a belt that comes with a lifespan. Once they have reached their lifespan, they will either come loose or simply break. As a result, your fan will stop working. Although the breaking of a belt can be solved by replacing it with a new one but typically it is also a sign that you should now change the air conditioner.

Unit Not Receiving Power

In some cases, your fan not working might be due to it not receiving a sufficient amount of power apart from the belts and other issues. This might be due to the fact that your air conditioner is overheating and tripping your circuit breaker at the same time. As a result, your air conditioner will shut down. It could be due to electricity fluctuation in your area, which causes the circuit breaker to trip regularly.

If that is the case then you can flip the switch and turn the breaker back on. However, if there are repeated power issues and the circuit breaker keeps tripping, you will need a professional to come take a look at it.

Final Word

This blog aimed to discuss and share some probable causes behind your HVAC fans not working. If the tips above do not help solve the problem, it might be some other issue. Consult air conditioning companies Vienna who can send a technician to take a look at it and determine the root cause of the problem.

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