Maintaining and Repairing a Washing Machine - Vocabulary Flashcards

Vocabulary flashcards covering technical terms, washing machine components, electronic control blocks, safety practices, and ESD protection procedures based on the Consumer Electronic Servicing NC II module.

AC Motor

An electrical machine that converts AC electrical energy into mechanical energy, producing a mechanical rotary action that performs work.

Antistatic

A container that resists the generation of frictionally generated triboelectric charge as a device is inserted into, removed from, or allowed to slide around in it.

Bushing

A sleeve protecting a conductor where it passes through a hole in a motor.

Capacitor

A device used to boost voltage to a motor; running capacitors increase running torque, while starting capacitors increase starting torque in the start winding.

Capacitor for Start Motor

A low reactance non-polar electrolytic capacitor connected in series with the start winding.

Motor

A rotating electric machine that changes applied electrical energy or power into mechanical output energy or power.

Rotor

The rotating part of an electric motor.

Run Winding

The main winding in an electric motor with comparatively low resistance and high inductance that provides power for turning the rotor during operation.

Resistor

A component made of material that opposes the flow of current and possesses a value of resistance.

Rotary Switch

An electromechanical device featuring a rotating shaft connected to one terminal capable of making or breaking connections to one or more other terminals.

Shaft

A part of a rotor supported by bearings that carries other rotating members and allows rotation.

Start Winding

An auxiliary winding in an electric motor with comparatively high resistance and lower inductance.

Stator

The stationary part of an electric motor where field windings are placed.

System Control Microprocessor

An integrated circuit that recognizes and responds to operator commands by monitoring DC voltages at output terminals.

Schematic Diagram

An illustration of an electrical or electronic circuit in which components are represented by standard symbols.

Short Circuit

A low-resistance connection between two points in a circuit that typically causes excessive current flow.

Solder

A metallic alloy used to join two metal surfaces.

Soldering

A process of joining two metallic surfaces to make an electrical contact by melting solder across them.

Substrate

A mechanical insulating support upon which an electronic device is fabricated.

Switch

An electrical device with two operational states: ON (closed) or OFF (open).

Thermal Cutout

An overcurrent device containing a heater element and a renewable fusible member that opens a circuit, not designed to interrupt short-circuit currents.

Transformer

An inductor constructed with two or more windings.

Troubleshooting

A systematic approach to locating the cause of a fault in an electronic circuit or system.

Winding

An assembly of coils designed to act together to produce or link a magnetic flux field.

Washing Machine

A domestic appliance powered by AC motors connected to a $60\,Hz$ power source that converts electrical energy into mechanical energy to wash, rinse, and spin clothes and linens.

Pulsator

A rotating component inside the tub responsible for making the water spin.

Drain Hose

A hose that serves as the passageway out for water from the washing machine.

Side Cover Tub

The main housing structure of the washing machine unit.

Drum

The internal tub component that serves as the washing tub.

Water Supply Hose

A hose that serves as the inlet passageway for water entering the washing machine.

Power Controller

A circuit in an electronically-controlled washing machine that regulates the amount of power supplied to the motor.

Sensor

An input receiver that detects signals from the forward and reverse motor and identifies operational abnormalities for automatic shutoff.

Program Selection Control

A push-button switch circuit that controls washing machine operation across timing sequences such as low, medium, or high.

Comparator

A processing circuit that accepts input signals from the sensor and program selection control to output triggering voltage to the power controller.

Buzzer

An audio device used to generate sound when a program operation finishes or when an error occurs.

AC Plug

A connector intended for connecting the washing machine to a main source of $220\,V$.

Static Charge

A form of electricity at rest generated by friction between two rubbing objects.

Electro-Static Discharge (ESD)

The transfer of static electricity between two objects when brought into contact to equalize electrical potential.

ESD Wrist Strap

A conductive band containing conductive strands and a high-value resistor (typically $1\,M\Omega$) that safely bleeds off static electricity from the technician's body to ground.

Washing Machine Parts Identification

The main structural and functional parts of a top-loading washing machine, including the Top Cover, Pulsator, Drain Hose, Side Cover Tub, Drum, Water Supply Hose, Program Selection Control, and AC Cord.

Electronically-Controlled Washing Machine Block Diagram

A diagram illustrating the functional architecture and signal flow between components like the AC Plug, Program Selection Control, Power Controller, Comparator, Sensor, Buzzer, Forward/Reverse Motor Assembly, and Tube Assembly.

Personal Protective Equipment (PPE)

Protective gear provided by employers—including head protection, ear protection, eye protection, close-fitting high-buttoned overalls, cuffless trousers, and reinforced footwear with insulated soles—worn to protect workers from job hazards.