Where to Buy  Air Conditioner Capacitor

AC Capacitor

Your air conditioner might break down at your most unexpected moment. You might be able to fix it easily by yourself if you know how to diagnose where the problem came from. If you discovered that the problem came from a faulty capacitor, then you might need to find some shops and buy a replacement.

A capacitor stores energy while your unit is running, and continuously supplying power to your motor, compressor, blower, and other parts of the unit. It is a small, cylindrical object that is located on the motherboard together with some electrical components inside the unit. To know if a capacitor is a problem, you should ask yourself and evaluate the situation. Is it not turning on? Does it take a long time before starting? Does it shut down on its own?

If most of your answer is yes, then there’s a big possibility that a capacitor is a problem. 

If that is the case, you might want to check is your unit is still under warranty. In that case, you won’t have to stress yourself as the repair services will come and repair your unit. If you think you can do it on your own, grab your tools and start inspecting inside your air conditioner.


Unplug your unit before checking it as it may bring danger and you might be electrocuted. Find the faulty capacitor. If you found it, take note of these few things:


  • There are different types of capacitors. Usually, it is either a run capacitor or a start capacitor. If it is a run capacitor, it functions even if the unit is turned on, while the latter only functions only at the beginning of start-up, to boost some of your components. 
  • It is important to take note of the capacitors voltage rating. You can always find it imprinted on the side of the capacitor. It might also be indicated in the owner’s manual.
  • Another important value to look for is its capacitance. It is usually measured in micro Farads, with a symbol of “μF”. Keep in mind that the new capacitor will have to match your older, faulty one.
  • You also have to take note of the size and shape of the faulty capacitor before buying a new one. Some capacitors are cylindrical, yet some are rounded. Always match your older one for your air conditioner to use it because compatibility is important.



When you already know what capacitor is needed to replace, you can start searching from these places:

Local Electrical Supply Store

If you happen to live near an electrical supply store, you can easily find a capacitor here. Look for the store clerk and show what your capacitor looks like together with its capacitance. A good store clerk will surely help you and give you what you’re looking for.

Online Shops

If you know exactly what you’re looking for, you can always go and search the web for it. Online stores such as Amazon and eBay might have what you’re looking for. Just make sure that you are sure what model and type of capacitor you are looking for.