Heating appliances convert electrical energy into heat, which is used to toast bread, warm coffee, dry hair, or perform other helpful tasks. This heat is developed by passing current through a special wire called an element. Since the element makes it difficult for electricity to pass through it, some of its energy turns into heat. The electricity uses so much of its energy to overcome the resistance of a toaster element, for instance, that it glows bright red, thus toasting the bread.
Common heating appliances covered in this article include toasters, toaster ovens, drip coffee makers, and percolator coffee makers. Heating appliances that work on the same principles include clothing irons; electric fry pans, woks, griddles, and waffle irons; convection ovens; deep fryers; slow cookers; food dehydrators; rice cookers; steam cookers; indoor grills; espresso and cappuccino machines; iced tea makers; and popcorn poppers. Once you’ve learned how to troubleshoot and repair the most popular heating appliances, it will be easy to repair any of them.
Motor appliances convert electrical energy into movement. This power cuts and blends foods, opens cans, grinds waste, picks up dirt, and moves air. A motor converts electrical energy into magnetic energy that rotates a shaft. The end of this shaft may have a blade or other attachment that does the actual work.
Motor appliances that are addressed in this article include food mixers and blenders, electric can openers, garbage disposers, and upright and canister vacuum cleaners. Other motor appliances with similar operation include juicers, coffee grinders, ice cream makers, electric knives, knife sharpeners, electric pencil sharpeners, electric clocks, fans, humidifiers, and foil-head and rotary-head electric shavers.
Some small appliances both heat and move. The most popular is the electric bread maker. It mixes dough, then bakes it into bread. Bread makers also include diagnostic electronics that assist the owner in troubleshooting and repair, so they are not included in this article. Other combination appliances include hair dryers and stirring popcorn poppers.
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