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How to Repair Common Oven Parts Oven is an appliance in the kitchen that is used to cook food. The heat generated by the oven sterilizes food items and kills the majority of microorganisms. All bakers require an accurate oven thermometer. Understanding how your oven functions can help you improve your baking cooking, roasting and cooking skills. It will also eliminate those hot spots that can cause damage to cakes, cookies and baked goods. Thermostat The thermostat is a crucial component of your oven. It assists in ensuring that the temperature of food matches the temperature you set on the control panel. As with any electro mechanical switch or sensor it can sometimes have problems that result in the oven going over or under heat, or just not be able to maintain the temperature at what you've set. The oven thermostat is basically an extremely small strip of two different metals connected. When heated, the metals expand and bend at different rates. This creates an electrical circuit. When the metal in the thermostat attains the temperature you've set on your control panel it shuts off power to the heating element. As the oven cools it expands the bimetallic strip to re-establish the circuit before turning on heating element. This cycle continues for a long time to maintain a constant oven temperature. The oven must be disconnected and all screws removed to identify a thermostat problem. Set your multimeter to the Ohms setting, and then test the thermostat. If the multimeter reads zero or very close to it the thermostat is operating properly and doesn't require to be replaced. If the multimeter does not show anything, the thermostat is faulty. It must be replaced. Cooker Spare Parts recommends that you replace the thermostat with a brand new one of the same kind as the one you have. They are available through the internet or at the kitchen store, and can be bought at a reasonable cost. Bake Element Ovens aren't complete without the bake element, which is the element that heats up to help your oven cook food. It's a small element that converts electricity into the high temperatures required to bake, roast, and broiling. Heating elements are commonly found in electric ovens and ranges, and they can be either uncovered or hidden under the floor of the oven. In general, oven heating elements consist of high-resistance elements like nickel-chromium. They work by converting electrical energy into heat by the process of resistance, which then radiates through the oven's interior, causing it to increase the temperature to the desired level to cook various types of food items. When you switch on your oven, the heating element begins to produce heat through the high-voltage electricity moving across its metal surface. When electric current is flowing through it, the element heats up. The element will appear red hot when it is at the desired temperature. The baked element is the primary source of heat in all oven functions. It's typically located in the bottom of the oven and is used for the self-cleaning feature in many ovens with automatic cleaning. You might notice that the oven does not heat up as quickly, or that your food isn't cooked to perfection. To determine if you have a functioning oven baking element plug your multimeter into its black and red ports, and then place the metal probes against each other on one end of your element. Place the other end against one of its terminals, and put your hand on it to feel whether the baking element is warm to the touch. If not, take it off and try again. Broil Element The broil element, which is typically located at the top of the cavity, allows high-temperature temperatures to brown or char foods. The broil setting in your oven is an excellent choice for quickly searing meat and vegetables, crisping up vegetables, warming lasagna, or making caramel on top of a casserole. Similar to the bake element the broiler heating element converts electrical energy into heat through the process of resistance. It is made up of an inner core comprised of wires made of metal, encased in an insulating and expanded product called perlite. The inner core is enclosed in an outer layer of stainless steel, which protects the wires from direct contact with the oven. The three-layer design helps to reduce the temperature of the broil element, making it more secure than older designs. While you may use any baking or broiling heating element in your oven, it is important to choose one that is in line with the wattage rating of your oven. Utilizing a different wattage may harm your oven or cause it to overheat. The current and voltage ratings of the new heating elements are available on the control panel of your oven. This allows you to determine the ratings and wattage of your oven. You should also check the resistance of your previous element and compare it with the power output of your new broiler heating element. The greater the resistance of an oven element the more power it uses. Replace your broiler element immediately if it is not working or is acting up. It's important that your oven functions correctly to be able to cook all of your favorite food items. If your oven doesn't operate in any way, or just intermittently then the problem may be a problem with a different component. Light Bulb and Assembly The light allows you to keep an eye on your food while it cooks without opening the door and let the heat escape. The light also informs you when the casserole is ready. However, it's not uncommon for the light bulb to go out. It can be frustrating but you can fix it yourself. Before you begin, make sure that the breaker hasn't tripped and that the three-prong connector is intact. Remove the old bulb and then look for the new bulb. It is possible to search online for a replacement that matches the wattage and type of oven you have. Some ovens use standard appliance bulbs of 40 watts, while others need a halogen lamp up to 50 watts. Consider using cotton gloves to shield bulbs from the damage caused by oil. Remove the glass casing of the bulb before you replace it. It is important to do this slowly to avoid breaking it. After that, you'll need to remove the air from the bulb and fill it with gas mixture. This will ensure a longer filament life. If your bulb keeps blinking, it could be an electrical problem that requires the assistance of a professional. Verify that Suggested Web page using the correct oven bulb and check your Use and Care Guide for more help in troubleshooting. Remember that it's a good idea to unplug your oven and disconnect it from the outlet before you start any repair. This will help prevent getting an electric shock. Vent Tube The vent tube is a vital oven component that permits a tiny airflow inside the cavity. This allows the bake element to circulate heat throughout the oven and ensures that the temperature is evenly distributed. It also allows vapors from the oven to escape, and allows smoke to be removed from the cooking surface. It is vital for the proper operation of any electric or gas oven. Oven vent tubes may become clogged by many factors. Accidental spills or splatters can leave sticky residues in oven vents. They may draw in dust, debris and other contaminants that can cause obstructions in the course of time. Oil and grease particles can become airborne and settle on the vents, too. Other environmental factors, such as kitchen construction and renovations, can introduce dust or other pollutants into the vents, which can cause obstructions or clogs. Depending on the model of the oven the vent tube could comprise a spreader 46 and a fill tip 12, and a bottle guide 20 that are integrally formed into the pipe 32. For instance, the bottle guide 20 may have a tapered outer surface that compliments the complementarily tapered inner surface of the spreader 46, allowing the vent tube to be effortlessly inserted into different sizes and shapes of bottle necks. A blocked vent tube may cause a loss in pressure inside the enclosure, which could cause a downdraft that pulls exhaust forward and down the vent, damaging the oven's components. Consult a professional if you think your vent pipe could be blocked or clogged. They will determine the cause and provide suggestions on how to clean or clean the vent.