Page 177 - Electronic Mechanic - TP - Volume - 2

ELECTRONICS MECHANIC - CITS

Washing machine water inlet valve
The water inlet valve is in the back of the washer, toward the top. It has one port for hot water and one for
cold. Some front load models only have one port for cold water and an internal heater to warm the water up to
temperature. The inlet valve opens and closes when it receives electrical signals from the washer, letting water
enter the tub at the right times during a cycle.
Water pump. This circulates the water through the machine, rotating in two directions. It’s used for circulating the
water through the wash cycle and also for draining the water during the spin cycle.

• Printed circuit board (PCB).This is where you’ll find mainly the electronics that operate the machine from
electrical components to circuits. These can be programmed and help operate the machine, acting as the
artificial intelligence for the washing machine, sometimes even deciding on the time needed for rinsing or
washing.

• Timer. This helps set the wash time for your clothes, which can be set manually or automatically.
• Heating element. This heats the water up in the washing machine to the desired temperature.

Result:Thus the Various parts of washing machine, Sensors, wiring, tracing, circuit diagram, washing motor, spin
motor, gear box, belt, controller, drain pump, wash timer, complete information has been obtained so that the
faults occurring in the washing machine in future can be efficiently rectified.

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CITS : E & H - Electronics Mechanic - Exercise 163