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How to Repair Common Oven Parts Ovens are a common kitchen appliance used to cook food. The heat from the oven sterilizes food and kills most of the micro-organisms in them. Every baker needs an accurate oven thermometer. Knowing how your oven functions can help you improve your baking cooking, roasting and cooking skills. It will also help eliminate those hot spots that can ruin cookies, cakes and baked products. Thermostat The thermostat is among the most crucial components of your oven, helping ensure that the temperature of your food is in line with what you've set in your control panel. It could be a problem, just like any other sensor or switch that is electro-mechanical. The oven can overheat or underheat, or simply not maintain the temperature you set. The oven thermostat is a small strip made of two different metals joined. When heated best hobs uk expand and bend at different rates, making or breaking an electrical circuit. When the thermostat's metal is at the temperature you've set on your control panel, it shuts off the heating element's power. As the oven cools down the bimetallic strip contract to re-establish the circuit before activating the heating element. This process continues to ensure a constant temperature in your oven. To identify a problem with the thermostat you'll have to remove the oven and ensure that all screws that hold it in place have been removed. If you have a multimeter (which is a device that analyzes the electrical current), set it to the ohms setting 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 fails to detect anything then the thermostat is not working properly. It is time to get it replaced. Cooker Spare Parts suggests that you replace your thermostat with a thermostat of the same type as the previous one. They can be purchased through the internet or at an appliance store and can be purchased at a reasonable cost. Bake Element The bake element is essential for the proper operation of your oven. It generates heat that allows it to cook food items. It's a small component that transforms electricity into the high temperatures needed for baking, roasting, and broiling. Electric ovens and ranges typically have heating elements, which can be either exposed or hidden beneath the floor. In general, oven heating elements are made of high-resistance materials such as nickel-chromium alloy. They work by converting electricity into heat via resistance. This heat is then radiated through the oven's interior to reach the temperature required for cooking different types foods. When you switch on the oven, the heating elements begin to produce heat due to the high-voltage current that flows across the metal surface. The element is a coil or ribbon (straight or corrugated) of wire, and when the electric current flows through it, it starts 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 all oven functions. It's usually found in the bottom of the oven and is also used to perform the self-cleaning function in a variety of ovens that are automatic. When it begins to get hot you may be noticing that your oven doesn't preheat as quickly or that your food isn't fully cooked. Connect your multimeter to its black and red ports. Then, press the probes made of metal on one end of the element against each other. Place the other end against one of its terminals and place your hand on it to test whether the element is warm to the contact. If not, remove it and try again. Broil Element The broil element, usually found at the top of your cavity allows high-temperature heat to cook or char the food. The broil setting of your oven is a great option for quickly searing meat and vegetables, crisping up vegetables, warming lasagna, or making caramel on top of the casserole. The broiler heating element has a similarity to the bake element in that it converts electrical energy by resistance into heat. It is composed of an inner core made up of metal wires, which are wrapped in an insulating, expanded material called perlite. The inner core of the element is covered with an outer layer of stainless steel to shield the wires from direct contact with the oven. The three-layer structure helps reduce the temperature of the broil element which makes it more durable and safer than older types of elements. You can use any heating element to bake or broiling in your oven. However, it is important to choose one that is in line with the wattage that your oven is rated for. Utilizing a different wattage may cause damage to your oven or cause it to overheat. You can verify the power of your oven as well as the rating of the new heating element by looking at their voltage and current ratings on the oven's control panel. Examine the resistance of the previous element, and compare it to the wattage rating of the new one. The higher the resistance of an oven element the greater power it draws from it. Replace the broiler element as soon as possible if it is not working or if it is acting up. Your oven needs to function correctly to be able to cook your favorite foods. If your oven doesn't operate in any way, or just intermittently then the problem may be in a different part. Light Bulb and Assembly The light lets you monitor the food that is cooking without opening the door and let heat escape. The light will also inform you when the casserole has been cooked. It's not uncommon for the light to fail. This can be very frustrating however, it's an easy fix you can tackle yourself. Before you begin, make sure that the breaker isn't tripped and that the three-prong connector remains intact. Take out the old bulb and then look for the new bulb. It is possible to search online for a replacement bulb that matches the wattage and type of oven you have. Some ovens utilize standard appliances with bulbs that run at 40 watts and others require an halogen lamp that can reach 50 watts. It is recommended to use cotton gloves to shield bulbs from damage caused by oil. Before you place the new bulb in it is important to first remove it from its glass casing. It is important to do this slowly so that you don't break it. After that, you'll need to remove the air from the bulb and fill it up with gas mixture. This ensures a longer life for the filament. If your light bulb is always being replaced, it could be a bigger electrical issue that must be handled by an expert. Make sure you double-check that you're using a correct bulb for your oven, and look over your Use and Care Guide for more troubleshooting advice. Be sure to unplug your oven and turn off the power prior to beginning any repairs. This will prevent you from getting an electric shock. Vent Tube The vent tube is a vital oven component that allows for an airflow within the cavity. This allows the bake element to circulate heat throughout the oven, ensuring that the temperature is distributed evenly. It also allows the vapors escape from the oven, and smoke to be drawn from the cooking surface. It is essential to ensure the proper operation of any gas or electric oven. Oven vent tubes can become blocked or blocked due to several factors. Accidental spills or splatters while cooking can leave sticky residues on oven vents, which can attract dust and other debris which can lead to blockages or clogs in the course of time. Grease and oil can also become airborne and build up around vents. Other environmental factors like construction and kitchen renovations can create dust in the vents. This can cause clogs. Depending on the model of the oven, the vent tube can include a spreader, an fill tip 12 and an a bottle guide 20 that are integrally formed into the pipe 32. For example the bottle guide 20 could have a tapered outer layer that is complemented by the tapered inside of the spreader 46, allowing the vent tube to be effortlessly placed into various sizes and designs of bottle necks. A blocked or clogged vent tube could cause an increase in pressure within the enclosing structure, which can create a downdraft situation which pulls exhaust down vent and then backwards over the oven burners, causing damage to the oven's components. Consult a professional if suspect that your vent tube might be blocked or clogged. They will diagnose the issue and offer suggestions on how to clean or clean the vent.