Why is my air conditioner making clicking noises? When your air conditioner starts making clicking noises, it can be a cause for concern. You may not know what’s wrong, and you may be wondering if it’s time to call a technician. In this article, we’ll explore some of the most common reasons why your air conditioner might be making clicking noises, and we’ll provide some tips on how to troubleshoot the issue.
Electrical Problems
Did you know that most air conditioners click once after turning them on? Yes, it is entirely natural. On the other hand, if your air conditioner makes a persistent clicking noise but won’t switch on, your system most possibly has an electrical issue involving your capacitors.
The click that occurs when the AC turns on is the thermostat telling the capacitors to work. The issue arises when the thermostat cannot connect with the capacitors, most likely due to damaged or shorted cables.
Dead Capacitor
If your air conditioner won’t turn on and you can hear a clicking noise from the unit, your capacitor is likely dead. The capacitor is responsible for providing power to the air conditioner’s compressor and fan motor. If it’s not working, the air conditioner will not be able to start up.
To test whether your capacitor is working, you’ll need a multimeter. Disconnect the power to your air conditioner, remove the access panel and locate the capacitor. Once you’ve found it, use the multimeter to test the capacitance. It needs to be replaced if it’s not within the normal range.
If you’re not comfortable working with electricity, it’s best to call a technician to replace the capacitor for you.
Faulty Fan Motor
The fan is one of the first things to look for as a potential source of the clicking sound. A bent fan blade or fan obstruction may cause the noise, which begins slowly as soon as the system turns on before eventually speeding up.
Removing the blockage, such as a stick or other piece of debris, might only be necessary so that the fan can spin smoothly. But if the issue is a bent fan blade or another, more severe issue, you might need to contact professionals to prevent aggravating the situation.
Thermostat Problem
Sometimes, the clicking noise may be coming from the thermostat itself. If you have a digital thermostat, the batteries may be low and need to be replaced. If you have an analog thermostat, the clicking sound could be caused by a loose connection.
To test whether your thermostat is the problem, try turning off the power to your air conditioner at the breaker box. Then, remove the thermostat’s cover and check the wiring. If everything looks secure, replace the batteries in your digital thermostat or call a professional to check your analog thermostat.
Malfunctioning Contactor
Regarding your air conditioning system, your contactor serves as the “operator.” It is responsible for switching on your outdoor air conditioning unit when your thermostat requests cool air. If the contactor is not working, your air conditioner will not turn on.
In addition to a clicking noise, other signs of a malfunctioning contactor include the air conditioner running but not cooling or an air conditioner that won’t turn off. If you suspect your contactor is the problem, it’s best to call a professional for help.
Attempting to fix a contactor on your own can be dangerous as it involves electricity. A trained technician will be able to properly diagnose the problem and make the necessary repairs.
Conclusion
Air conditioners are complex systems with many potential causes of clicking noises. If you’re hearing a clicking noise from your air conditioner, it’s best to contact a professional for help. Furnace Repair Toronto can help you troubleshoot the problem and make the necessary repairs. We’re here to help you keep your home comfortable all summer long!
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