Capacitors

Replacing a capacitor 

Connecting an air conditioner dual run capacitor requires some basic knowledge of electrical wiring and safety precautions. Here are the general steps to follow:

  1. Turn off the power: Before working on any electrical component, make sure to turn off the power to the air conditioner at the circuit breaker.

  2. Identify the capacitor: Locate the dual run capacitor in your air conditioning system. It is a cylindrical-shaped component with three terminals on the top.

  3. Identify the wires: Identify the wires that are connected to the old capacitor. There should be two wires connected to the top terminal and one wire connected to the bottom terminal.

  4. Disconnect the wires: Use a pair of needle-nose pliers to disconnect the wires from the old capacitor. Make sure to label the wires so that you know which wire connects to which terminal.

  5. Remove the old capacitor: Use a screwdriver to remove the mounting bracket that holds the old capacitor in place. Remove the old capacitor from the bracket.

  6. Install the new capacitor: Install the new capacitor in the same position as the old one, using the mounting bracket to hold it in place.

  7. Connect the wires: Connect the wires to the new capacitor, making sure to connect each wire to the correct terminal. The wire connected to the C terminal is typically the common wire, while the wires connected to the FAN and HERM terminals are for the fan and compressor, respectively.

  8. Test the capacitor: Once all the wires are connected, turn on the power to the air conditioner and test the capacitor using a multimeter. The capacitance should match the rating on the capacitor.

  9. Close the unit: Close the air conditioning unit and ensure that it is running smoothly.

Note: If you are unsure of how to connect the dual run capacitor, it's best to seek the help of a licensed HVAC technician to avoid any potential safety hazards.

The above information is for educational use. If you do not feel comfortable or do not have electrical knowledge or experience, please call a local HVAC contractor.