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How to Repair Common Oven Parts Oven is a kitchen appliance that is commonly used to cook food. The heat of the oven sterilizes food and kills the majority of microorganisms. An accurate oven thermometer is essential for all bakers. Understanding how your oven works will help improve your baking and roasting skills, and eliminate those irritated hot spots that wreak havoc with cookies, cakes and other baked goods. Thermostat The thermostat is a crucial element of your oven. It is used to ensure that the temperature of food is in line with the temperature you have set on the control panel. It can be problematic, just like any other sensor or switch that is electro-mechanical. The oven could overheat or underheat, or not keep the temperature you have set. The oven thermostat is a small strip made of two different metals that are connected. When heated, the different metals expand and bend at different rates, making or breaking an electrical circuit. When the thermostat's metal attains the temperature you've set on the control panel, it shuts off the power to the heating element. As the oven cools the bimetallic strips expand to re-establish the circuit before turning on the heating element. This cycle continues for a long time to ensure a constant oven temperature. To identify a issue with the thermostat, you'll need to disconnect the oven and verify that all screws that hold it in place have been removed. If you have a multimeter (which is a device that measures electrical current), set it to the ohms level and then test the thermostat. If the multimeter reads 0 or very close to it then the thermostat is operating properly and doesn't require to be replaced. If the multimeter doesn't show anything then the thermostat is not working properly. It must be replaced. Cooker Spare Parts suggests that you replace your thermostat with a thermostat of the same type as the previous one. The thermostats are available for purchase at a reasonable price online or in a kitchen goods shop. Bake Element The bake element is crucial to the functioning of your oven. It produces heat that allows it to cook food items. It's a simple component that converts electricity into high temperatures for baking, roasting, and broiling. Electric ovens and ranges usually include heating elements that are either visible or hidden under the floor. In general, oven heating elements are constructed of high-resistance materials such as nickel-chromium alloy. They work by converting electricity into heat through resistance. This heat then radiates through the interior of the oven to reach the desired temperature for cooking different types foods. When you switch on your oven the heating element starts to generate heat by the high-voltage electricity moving across its metal surface. The element is a ribbon or coil (straight or corrugated) of wire, and when the electric current flows through it, it begins to heat up. When the element reaches its temperature, it starts to glow red hot. The baked element is the main source of heat in most oven functions. It is usually located at in the bottom of the oven. Many automatic oven models also utilize it to clean themselves. If it starts to get hot you may notice that your oven doesn't warm as quickly or your food isn't cooked through completely. Connect your multimeter to its black and red ports. Then, touch the probes made of steel on one end of the element to each other. Place the other end of the element on one terminal and place your hands on it. If the element feels warm, remove it and test it again. If not, remove it and try again. Broil Element The broil element, which is usually found at the top of the cavity, offers high heat to cook or char foods. The broil setting in your oven is a great option for quickly searing meat, crisping vegetables, reheating lasagna, or caramelizing the top of the casserole. The broiler heating element has a similarity to the bake element in that it converts electrical energy through resistance into heat. It is comprised of an inner core consisting of metal wires, which are wrapped in an insulating expanded product called perlite. The inner core is wrapped in an outer layer of stainless steel to shield the wires from direct contact with the oven. The three-layer structure helps reduce the broil element's temperature, making it more secure and efficient than older styles of elements. While you are able to use any heating element in your oven, you should choose one that matches the wattage rating of your oven. A different wattage could cause damage to your oven or cause it to overheat. You can verify the power of your oven and the rating of the new heating element by looking at their voltage and current ratings on the control panel of your oven. Check the resistance of the old element, then compare it to the wattage rating of the new one. The greater the resistance of an oven element, the more power it draws. Replace your broiler element immediately if it is not working or is acting up. It is crucial that your oven functions properly to cook all of your favorite food items. If, however, your oven is not working at all, or is only working intermittently, the issue may be with a different part of your oven. Light Bulb and Assembly The light lets you monitor your food as it cooks without opening the door and letting heat escape. The light will also notify you when the casserole is finished. It's not uncommon for the bulb to go. It can be a hassle, but you can do it yourself. Before you begin, make sure that the breaker isn't tripped and that the three-prong connector is intact. Remove the old bulb and then look for the new bulb. You may have to look online for a replacement bulb that matches the wattage and the type of your oven. Some ovens utilize normal appliance bulbs that are 40 watts in power and others require a halogen lamp up to 50 watts. Be aware that the oil from your hands could damage the halogen bulb, so consider using cotton gloves when handling it. Remove the glass casing of the bulb before replacing it. It is important to do this slowly so that you don't break it. After that, you'll need to eliminate the air inside the bulb and fill it up with a mixture of gases. This will provide a longer life for the filament. If your bulb keeps going out, there could be a wider electrical issue that must be dealt with by an expert. Make sure you're using the correct oven bulb and look over your Use and Care Guide to get additional troubleshooting tips. Remember that it's recommended to unplug your oven and disconnect the power from the outlet before you start any repair. This will keep you from suffering an electric shock. Vent Tube The vent tube is an important oven element because it allows a small amount of airflow to be created within the cavity. This allows the bake element to circulate heat around the oven and ensures that the temperature is evenly dispersed. It also allows vapors from the oven to escape and also allows smoke to be removed from the cooking surface. best oven is necessary to ensure the proper operation of any electric or gas oven. Oven vent tubes may become clogged by various reasons. Accidental spills or splatters could leave sticky residues in oven vents. They may draw in dust, debris and other contaminates that could cause clogs over time. Grease and oil particles may become airborne and settle on the vents, and vice versa. Other environmental factors such as construction and kitchen renovations can cause dust to enter the vents. This can cause clogs. Based on the model of the oven the vent tube may include a spreader 46, an fill tip 12 and an 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. This allows the vent tube to be effortlessly inserted into different sizes and forms of bottle necks. A blocked or clogged vent tube could cause an increase in pressure within the enclosing structure. This could result in a downdraft which pulls exhaust down vent and backwards towards the oven's burners, causing damage to the oven components. Consult a professional if suspect that your vent tube might be blocked or clogged. They will determine the cause and provide recommendations for removing or cleaning the vent.