Local Metal-Body Washing Machine Wiring Diagram – Complete Guide for Technicians

 

Local metal-body washing machine wiring diagram explained with timer, bell, light, motor, capacitor, and two-way switch for technicians.

Complete Technician Guide

Local metal-body washing machines are widely used in Pakistan due to their durability, easy maintenance, and low-cost electrical design. The wiring system is simple, but understanding each connection is important for correct installation and troubleshooting. This guide explains the full wiring diagram you provided, including the timer, motor, capacitor, bell, light, and two-way switch.

---

1. Main Components in the Diagram

● Timer (Washing Machine Timer)

The timer controls the washing cycle and distributes power to different parts of the machine.
In the diagram, the timer sends multiple wires:

• Yellow

• Red

• Black (Neutral)

• Grey

These wires supply power to the motor, bell, light, and two-way switch.

---

● Bell

The bell rings when the washing cycle completes.
It receives power from the timer through a black line (neutral shared).

---

● Light

The indicator light shows that the machine is ON.
It is connected in parallel with the bell and timer circuit.

---

● Two-Way Switch

The two-way switch controls the direction of the motor:

• Forward rotation

• Reverse rotation

In the diagram:

• Grey wire

• Yellow wire

• Red wire

are used for direction control.

---

● Main Wire (AC Input 220V)

The main power wire enters from the right side of the diagram.
It supplies voltage to:

• Timer

• Two-way switch

• Motor (through controlled connections)

---

● Capacitor (10µF Fuji)

The capacitor provides the starting torque needed by the motor.
In your diagram:

• Two blue wires connect the capacitor directly to the motor’s auxiliary coil.

Most local washing machines use 10µF to 12µF capacitors.

---

● Motor

The motor rotates the washing tub. It has:

• One common/neutral line (black)

• Two direction lines (yellow and red)

• Two capacitor wires (blue)

These connections allow the motor to run forward or reverse depending on the switch position.

---

2. Wiring Flow Explanation (Step-by-Step)

1. AC 220V Main Wire → Timer Input
   The timer receives the main supply and controls all outgoing connections.

2. Timer Output → Motor, Bell, Light
   Different colored wires (yellow, red, black, grey) leave the timer and feed other components.

3. Two-Way Switch → Motor Direction
   The switch selects which wire (yellow or red) energizes the motor, changing its direction.

4. Capacitor → Motor Auxiliary Winding
   The capacitor boosts starting torque and stabilizes rotation.

5. Motor Common → Neutral
   The black wire connects back to neutral.

This simple flow ensures smooth operation and easy troubleshooting for technicians.

---

3. Common Technician Problems & Solutions

● Motor does not start

• Weak/damaged capacitor

• Faulty timer output

• Two-way switch not making contact

Solution: Test capacitor first (10µF recommended).

---

● Shock on metal body

• Missing or loose ground wire

• Water leakage causing live contact

Solution: Always ensure proper earthing on metal-body machines.

---

● Motor only runs in one direction

• Grey, red, or yellow wire loose

• Two-way switch faulty

Solution: Test continuity of switch terminals.

---

● Bell not working

• Black wire loose

• Timer not sending output

#washingmachine #wiringdiagram #localmachine #motorwiring #capacitor #timer #technicianhelp #helper7