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Q.

How to Change a AC Capacitor?

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9 months

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0 2024-06-28T12:37:58+00:00

My AC was not cooling properly and I thought it might be because it has become old. I hired an AC technician from NoBroker and asked him if I should change the AC. The technician inspected the AC and told me that the AC capacitor had just become old, but the rest was fine. Following that, I asked him how to replace capacitor on AC unit. He told me to watch closely. 

How to Change Air Conditioner Capacitor?

  • The first step was to turn off the power before checking the capacitor.

  • After that, he located the capacitor and checked the conditions of the capacitor. He told me that it's essential to check whether the capacitor is damaged or not. 

  • Now, he started detaching the wires from the old capacitor. Then, he unscrewed the mounting strap to remove the capacitor.

  • Following that, he mounted the new capacitor in the same space as the old one and connected the wires. 

  • Following that, he switched on the power supply to the AC unit and checked if the AC was cooling properly or not. 

And that’s the process of how to replace capacitor on AC unit, the technician said. I hope this information will be of help to you. 

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My AC technician suggested changing AC capacitor of my AC. My AC had been malfunctioning during the last summer and after getting it checked I found out that it was because of a faulty AC capacitor. The main purpose of a capacitor is to start the fan and compressor of your AC unit. A defective one does not do this well. So, if a capacitor is faulty, it certainly needs instant replacement.

How to Change Capacitor on AC Unit?

  • Switch off the power
I think this goes without saying. The first thing to do before you replace the capacitor on an AC unit is to ensure that the system is turned off.
  • Open the AC’s Access Panel
The panel is usually found on the upper corner of the AC casing. Remove the mounting screw to open the access panel. This is another important step in understanding how to change a AC capacitor.
  • Purchase a New Capacitor
One thing my technician suggested is that before purchasing a new capacitor, you should locate the current capacitor inside the panel and take note of all the information in the sticker, including its tolerance, capacitance, and load voltage. This is to ensure that you purchase a capacitor with those exact specifications.
  • Detach the Capacitor and Name the Wires
Grab the blade of an insulated screwdriver to remove the capacitor. This will ensure that there is no electricity left inside the capacitor. The next thing is to examine the old capacitor. The old capacitor should have tags that show where each wire proceeds. “Herm” for compressor, “Fan” for fan, and “C” for common.
  • Insert a New Capacitor
This is the most crucial step of how to change a capacitor on AC unit. Just ensure that the new capacitor is positioned in the same place as the old one. To secure it perfectly, you can use a mounting strap.
  • Switch on the Power and Test
And lastly, to switch on the AC unit, you will have to reinsert the block fuse or power on the circuit breaker. Just ensure that the thermostat is turned on too. These are the six steps on changing AC capacitor. I hope it helps you. Get Your AC Repaired and Increase its Efficiency with NoBroker AC Services. Read More: How To Change Ceiling Fan Capacitor?

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