The first a part of the dryer I’ll explain is the control panel which is comprised of a timer, a start switch, and some selector switches/knobs. The timer is the most important (usually) knob on the control panel. The timer itself could either be a simple mechanical device, or an electric part with a digital readout. The timer cycles in a pattern, and sends electricity to every part at a selected time, and in addition for a pre-set time frame. The beginning switch is clearly what you press to start up your dryer. The dryer mustn’t run until you push or turn the beginning knob. Most dryers have different knobs and switches on the control panel which let you adjust different settings of your dryer. On the dryers with an electronic readout, there’s usually a push button pad you’d use to make the selections instead. The door switch is located on the inside of the dryer cabinet near the door frame. Whenever you close the door it’ll activate a switch and tell the dryer to start running. While you open up the door, the switch will stop the ability to a lot of the dryer’s inner components and it’ll activate the interior light (if it has one). If your dryer does not stop whenever you open the door you need to stop using the dryer; otherwise serious injury could result.
Next, I’ll explain how the drive motor and the burner assembly work. The dryer motor does three things: it has a belt attached to it that spins the drum, it has a fan blade connected to the opposite side which draws warm air into the drum, after which pushes it through the exhaust vent, and it also stops the heat from turning on if the motor would not rise up to hurry. Now, the burner assembly is definitely just the heating element and one or more little thermostats. The timer supplies the electricity to the heat element. When you close your dryer door, set the timer, and push the start switch, the motor will start. In about one second the motor will reach full speed, after which a switch on the motor will allow electricity to flow into the heat element through a thermostat. Next, the heating element will start to glow red hot, air from the blower will pass over the element, in the drum, and out the exhaust vent. When the dryer reaches a pre-determined temperature a thermostat turns off the electricity to the heat element. Once the temperature within the dryer falls about twenty degrees, the thermostat sends electricity to the heat element again after which the cycle will start over. In case you chose the automatic setting in your dryer this cycle will keep going until the clothes are dry and then the timer will advance and turn the dryer off. If you happen to chose the timed setting the cycle will continue until the time has run out after which the timer again will turn the dryer off.
Here is how a gas dryer works: the only difference is in the burner assembly. First you shut the door, push or turn the start button, and then the motor starts. After approximately one second the motor will reach full speed and the switch on the motor turns on, allowing electricity to flow through a thermostat to 1 side of the gas valve. That valve sends power to the igniter which then will glow a bright orange. The heat and light from the igniter warms up a sensor which is right next to the igniter. Then the sensor circuit opens; supplying power to the other side of the gas valve. This completes the circuit and opens the valve. Now the valve is open and the gas comes out and the igniter ignites it. The gas then burns which keeps the sensor warm, and that keeps the gas flowing. When the dryer reaches a pre-determined temperature, a thermostat turns off the electricity to the gas valve which shuts off the gas. When the temperature within the dryer falls around twenty to thirty degrees, the thermostat allows the electricity to flow throughout the gas valve after which the cycle begins again.