Washing machines are essential appliances in modern households. They make laundry work more manageable and faster, saving time and effort. One of the primary components that make washing machines functional is the motor. The motor powers the drum that spins and agitates the clothes during washing.
Washing machine motors usually have seven wires coming out of them. These wires are labeled differently and serve different purposes. In this article, we will discuss the 7 wire washing machine motor wiring diagram in detail.
Understanding Washing Machine Motor Wiring Diagram
The diagram of a washing machine motor can be intimidating at first glance. However, it is relatively simple to understand once you know what each wire represents. The seven wires coming out of the washing machine motor are:
- Blue wire
- White wire
- Green wire
- Red wire
- Yellow wire
- Brown wire
- Black wire
Each wire has a unique role in the washing machine motor’s functioning. Below we discuss what each wire represents and how it is connected to the washing machine system.
Blue Wire
The blue wire is usually the power wire that supplies the circuit’s voltage. It is responsible for starting the washing machine’s motor when you press the start button. The blue wire is connected to the main terminal block of the washing machine, where it receives power from the power source.
Most washing machines have extra wires for advanced features like programming, additional controls, or sensors. These wires are connected to a control box that oversees different operations.
White Wire
The white wire is the neutral wire. It is responsible for completing the circuit, allowing the electricity to flow smoothly through the washing machine system. The white wire is connected directly to the power source’s neutral terminal in the main terminal block of the washing machine.
Green Wire
The green wire is the ground wire. Its primary function is to protect users from electrocution in case of a malfunction. The green wire is connected to the washing machine’s metal frame, which provides an alternative path for electricity to flow in case of an electrical fault.
Red Wire
The red wire is connected to the centrifugal switch. Its function is to provide power to the washing machine motor when the centrifugal switch is engaged. The centrifugal switch operates by sensing the rotational speed of the motor and sending a signal to the red wire to power up the motor.
Yellow Wire
The yellow wire is connected to the auxiliary winding of the washing machine motor. It is responsible for supplying the necessary starting torque to the motor. The auxiliary winding provides additional power to kick-start the motor when the machine is starting a wash cycle.
Brown Wire
The brown wire is also connected to the auxiliary winding of the washing machine motor. It is responsible for providing the necessary rotational speed to keep the washing machine drum moving during the wash cycle. The brown wire and the yellow wire work together to ensure the motor runs smoothly throughout the wash cycle.
Black Wire
The black wire is connected to the main winding of the washing machine motor. It is responsible for providing the primary power to the motor to keep it running during the wash cycle. The main winding receives power from the blue wire and runs at varying speeds, depending on the load’s weight.
Washing Machine Motor Wiring Diagram
Below is a table showing how the seven wires of a washing machine motor are connected and what functions they perform.
| Wire Color | Function |
|---|---|
| Blue Wire | Main Power Source |
| White Wire | Circuit Neutral |
| Green Wire | Ground |
| Red Wire | Centrifugal Switch |
| Yellow Wire | Auxiliary Winding |
| Brown Wire | Auxiliary Winding |
| Black Wire | Main Winding |
FAQ
What is the most common cause of washing machine motor failure?
The most common cause of washing machine motor failure is overheating. This can occur due to overloading, blocked vents, or poor maintenance. If the motor gets too hot, it can damage the winding, resulting in motor failure.
Can a washing machine motor be repaired?
Yes, in some cases, a washing machine motor can be repaired. However, it is more cost-effective to replace a faulty motor with a new one. If you suspect that your motor is faulty, it is best to consult a qualified technician.
What is the average lifespan of a washing machine motor?
The average lifespan of a washing machine motor is around 10-12 years. This can vary depending on how frequently the machine is used and how well it is maintained.
What is the difference between a two-wire and seven-wire washing machine motor?
A two-wire washing machine motor is usually found in older washing machines. It has two wires coming out of it, one for power and one for neutral. In contrast, a seven-wire washing machine motor is found in newer models and has seven wires that perform different functions, such as starting the motor, providing power, and sensing rotational speeds.
Do all washing machines have the same wiring diagram?
No, not all washing machines have the same wiring diagram. The wiring diagram can vary depending on the model and manufacturer of the washing machine.
Conclusion
Understanding the 7 wire washing machine motor wiring diagram is essential for maintaining and repairing washing machines. The diagram may seem complex, but once you know what each wire represents, it becomes relatively easy to understand. Regular maintenance and proper use can extend the washing machine motor’s lifespan and save you money in the long run.
