Craftsman Air Compressor Capacitor Wiring Diagram

Craftsman air compressor capacitor wiring diagram is a vital component in the air compressor circuit. It helps in starting the motor and keeps it running efficiently. The capacitor stores electrical energy and releases it when required, and it helps the motor to maintain a steady flow of power.

What is an Air Compressor Capacitor?

An air compressor capacitor is a small cylindrical object that stores electrical energy. It is an essential component in the air compressor circuit and helps in starting the motor. It is also responsible for maintaining a constant flow of power to the motor, which ensures its efficient operation.

The capacitor is made up of two metal plates separated by an insulating material, which is known as a dielectric. When an electrical charge is applied to the capacitor, it stores the charge in the dielectric. When the charge is released, it flows through the circuit and provides the motor with the energy it needs to function.

Types of Capacitors

There are two types of capacitors used in air compressors:

  • Start Capacitor: It is responsible for providing the initial electrical charge to the motor to start it. Once the motor is running, the start capacitor is no longer needed.
  • Run Capacitor: It is responsible for providing a continuous flow of power to the motor during operation. It helps in maintaining a constant flow of current, which ensures the efficient operation of the motor.

Wiring Diagram

The wiring diagram for a Craftsman air compressor capacitor is relatively simple. It consists of three terminals, which are labeled HERM, FAN, and C. The HERM terminal is connected to the compressor motor, the FAN terminal is connected to the fan motor, and the C terminal is connected to the common terminal of the power supply.

The wiring diagram for the capacitor should be followed precisely to ensure that the air compressor functions correctly. Any deviation from the wiring diagram could lead to the air compressor malfunctioning or not working at all.

Table 1: Wiring Diagram for Craftsman Air Compressor Capacitor

Terminal Connection
HERM Compressor Motor
FAN Fan Motor
C Power Supply Common

Frequently Asked Questions

Q: Why is the capacitor necessary in an air compressor?

A: The capacitor is necessary in an air compressor as it stores electrical energy, which is required to start the compressor motor. Without the capacitor, the compressor motor would not start, and the air compressor would not function.

Q: Can a faulty capacitor lead to an air compressor malfunction?

A: Yes, a faulty capacitor can lead to an air compressor malfunction. If the capacitor is not providing the necessary electrical charge, the motor will not start, and the air compressor will not function correctly.

Q: How can I test if the capacitor is functioning correctly?

A: You can test the capacitor by using a multimeter. Set the multimeter to the capacitance test function and touch the probes to the terminals of the capacitor. The reading should be within the capacitor’s specified range. If the reading is outside the range, the capacitor is faulty, and it needs to be replaced.

Q: How often should I replace the capacitor in my air compressor?

A: The capacitor in an air compressor should be replaced every five to seven years, or when it shows signs of wear and tear, such as bulging or leaking. Regular maintenance of the air compressor can also help to prolong the life of the capacitor.