How household appliances work
Understand the normal operating sequence so an error code or symptom has context.
Washing machine
Fill → wash/agitate → drain → rinse → spin, with valves, sensors, motor and pump.
System guideDishwasher
Fill → circulate → heat → drain → rinse → dry, with sump, pump and sensors.
System guideTumble dryer
Airflow, heat, drum motion and moisture removal across vented, condenser and heat-pump designs.
System guideRefrigerator
Vapour-compression cooling, airflow, temperature control and automatic defrost.
System guideFreezer
The same refrigeration cycle with colder control targets and defrost/airflow considerations.
System guideOven
Temperature sensing, heating elements/burners, control cycling and convection airflow.
System guideMicrowave
Control, interlocks and microwave-energy generation—high-voltage internals are not homeowner-serviceable.
System guideAir conditioner
Refrigeration loop, indoor/outdoor airflow, condensate removal and thermostat control.