How to Jump a 3 Wire AC Pressure Switch
Jumping a 3 wire AC pressure switch is a common troubleshooting technique used to bypass a faulty switch and restore power to an air compressor or similar equipment. This process involves temporarily connecting two wires together to simulate the switch’s function. In this article, we will guide you through the steps to safely and effectively jump a 3 wire AC pressure switch.
Understanding the 3 Wire AC Pressure Switch
Before we dive into the process, it’s essential to understand the components of a 3 wire AC pressure switch. These switches typically consist of three wires: two power wires and one control wire. The power wires are responsible for supplying electricity to the compressor, while the control wire sends a signal to the switch when the pressure reaches a certain level.
Tools and Safety Precautions
Before attempting to jump a 3 wire AC pressure switch, gather the following tools and materials:
– A pair of insulated pliers
– A wire stripper
– A screwdriver
– A replacement switch (optional)
– Safety goggles
– Gloves
Always prioritize safety when working with electrical equipment. Ensure that the power source is turned off before beginning the process, and wear safety goggles and gloves to protect yourself from potential hazards.
Step-by-Step Guide to Jumping a 3 Wire AC Pressure Switch
1. Identify the faulty switch: Locate the 3 wire AC pressure switch on your air compressor or equipment. It is usually mounted on the side or top of the unit.
2. Disconnect the power source: Turn off the main power switch or circuit breaker to ensure that no electricity is flowing through the system.
3. Inspect the switch: Use a screwdriver to remove the cover of the switch and inspect the internal components. Look for any visible damage or signs of wear.
4. Disconnect the wires: Carefully disconnect the power wires from the switch. These wires are typically connected to the switch terminals using screw terminals or clamps.
5. Identify the control wire: Locate the control wire, which is usually a different color than the power wires. This wire is responsible for sending the pressure signal to the switch.
6. Strip the wire ends: Use a wire stripper to remove approximately 1/2 inch of insulation from the ends of the power wires and the control wire.
7. Connect the power wires: Take one end of the power wire and strip the insulation from the other end. Then, twist the stripped ends together, ensuring a secure connection. Repeat this process for the other power wire.
8. Connect the control wire: Strip the insulation from the control wire and connect it to the power wires using the same method as in step 7. Ensure that the control wire is securely connected to the power wires.
9. Reinstall the switch cover: Once all connections are made, reinstall the switch cover and secure it in place.
10. Restore power: Turn on the main power switch or circuit breaker to restore power to the system.
Conclusion
Jumping a 3 wire AC pressure switch is a practical solution for temporarily restoring power to your air compressor or similar equipment when the switch is faulty. By following the steps outlined in this article, you can safely and effectively bypass the faulty switch and get your equipment up and running again. However, it’s important to remember that this is a temporary fix, and you should eventually replace the faulty switch with a new one to ensure long-term reliability and safety.
