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How to Repair Common Oven Parts Ovens are an appliance in the kitchen that is used to cook food. The heat generated by the oven sterilizes foods and kills the majority of micro-organisms present in them. All bakers require an accurate oven thermometer. Knowing how your oven functions can help you improve your baking, roasting and cooking skills. It will also eliminate those annoying hot spots which can ruin cakes, cookies and baked items. Thermostat The thermostat is one of the most important parts of your oven, assisting to ensure that the temperature of your food is exactly the temperature you've set on your control panel. Unfortunately, like any other electronic mechanical switch or sensor, it can sometimes have problems that result in the oven going over or under heat, or simply not be able to maintain the temperature you've set. The oven thermostat is essentially an extremely small piece of different metals bonded together. When heated by the oven, the metals expand or bend at different rates. This creates an electrical circuit. When the metal in your thermostat reaches the temperature you set on your control panel it will turn off the power to the heater. As the oven cools, the bimetallic strip contracts to re-establish the circuit before activating the heating element. This cycle is constantly repeated to ensure that the temperature remains constant in your oven. The oven must be disconnected and all screws removed to diagnose the problem with the thermostat. If you own a multimeter (which is a tool that measures electrical current) set it to the ohms setting, and then test the thermostat. If the multimeter reads zero or very close to it the thermostat is working correctly and doesn't require to be replaced. If the multimeter isn't reading anything, it's likely that the thermostat is not working properly and must be replaced. Cooker Spare Parts recommends that you replace the thermostat with a fresh one of the same kind as your old one. The thermostats are available for purchase at a reasonable price online or in a kitchen goods shop. Bake Element Ovens are not complete without the bake element, which provides heat to make your oven cook food. It's an easy component that transforms electricity into high temperatures for baking, roasting, and broiling. Electric ovens and ranges usually have heating elements, which can be exposed or hidden beneath the floor. In general, oven heating elements are made from high-resistance materials like nickel-chromium alloy. They convert electrical energy into heat using resistance. This heat is then radiated through the interior of the oven to achieve the temperature required for cooking different types foods. When you turn on your oven, the heating element begins to produce heat through the high-voltage electricity moving across its metal surface. The element is a coil or ribbon (straight or corrugated) of wire, and as the electric current passes through it, it starts to heat up. The element will turn red hot when it reaches the temperature you want. The baked element is the primary source of heat for most oven functions. It's typically located in the bottom of the oven, and is used for the self-cleaning feature in many automatic oven models. When it starts to smoke you may notice that your oven doesn't preheat as quickly or that your food isn't cooked through completely. Plug your multimeter in to its red and black ports. Then, you can press the probes made of steel on one end of the device against each other. The other end of the element against one terminal and then place your hand on it. If the element feels warm, take it off it and test it again. If not, take it off the element and start testing again. Broil Element The broil element is typically located at the top of your oven cavity and provides high heat like a grill to roast or grill food. The broil setting of your oven is a great option for quickly grilling meat, crisping vegetables, reheating lasagna or caramelizing the top of a casserole. Similar to the bake element the broiler heating element transforms electrical energy into heat by the process of resistance. It is comprised of an inner core of wires that are wrapped in an insulating expanded perlite material. The core of the element is then covered with an outer layer of stainless steel to protect the wires against direct contact with the oven. The three-layer structure helps reduce the broil element's temperature, making it more durable and safer than older styles of elements. You can use any heating element for baking or broiling in your oven. However, it is important to select one that matches your oven's rated wattage. A different wattage could damage your oven or cause it to overheat. The voltage and current ratings of the latest heating elements can be found on the control panel of your oven. This will allow you to check the power and rating of your oven. Examine the resistance of the old element, and then compare it to the wattage rating of the new one. The higher the resistance, the more power an oven element uses. If your broiler's heating element is not working or functions in any way, you should replace it as soon as possible. Your oven needs to function correctly to be able to cook your favourite meals. If your oven doesn't operate in any way, or just intermittently then the problem may be with another part. Light Bulb and Assembly The oven light helps you keep an eye on your food while it cooks without having to open the door to let heat escape. The light will also let you know when the casserole has been cooked. It's not uncommon for the light bulb to fail. This can be frustrating but it's an simple fix that you can do yourself. Check that the breaker isn't tripped and that the connector has three prongs. Remove the old bulb, and then find the new one. It is possible to search the internet for the right replacement bulb that matches your oven's wattage. Some ovens have normal appliance bulbs that are 40 watts in power some require lamps that are halogen up to 50 watts. Consider using cotton gloves to shield the bulbs from damage caused by oil. Remove the glass casing from the bulb before replacing it. It is important to do this slowly to avoid breaking it. Then, you'll need to remove the air from the bulb and fill it with gas mixture. This will extend the filament life. If your bulb keeps going out, it could be an electrical issue that requires the assistance of a professional. Double check that you are using the correct oven bulb and check your Use and Care Guide to get more help in troubleshooting. And remember that it's always an excellent idea to unplug your oven and disconnect the power from the outlet before you begin any repair. This will prevent you from being shocked by electricity. Vent Tube The vent tube is an essential oven part that allows for a small airflow inside the cavity. oven and hob allows the bake-element to circulate heat throughout the oven, ensuring that the temperature is distributed evenly. It also allows the vapors that are released from the oven to escape and also allows smoke to be drained away from the cooking surface. It is vital for the efficient operation of any electric or gas oven. Vents for ovens can become clogged by a variety of factors. Accidental spills and splatters during cooking can leave sticky residues on the oven vents, which can draw dust and other debris that can eventually cause blockages or clogs in the course of time. Grease and oil particles can become airborne and settle around the vents, and vice versa. Other environmental factors, such as kitchen renovations and construction work could introduce dust or other pollutants into the vents, which can cause clogs or blockages. Depending on the oven model the vent tube may comprise a bottle guide 20 and spreader 46, as well as fill tip 12 that are integrally formed by the pipe 32. The bottle guide 20 can have a tapered outer edge that matches the tapered inside edge of the spreader. This allows the vent tubes to be inserted easily into different sizes and shapes bottle necks. A blocked vent tube may cause a decrease in pressure within the enclosure, which can lead to a downdraft that pulls exhaust backwards and then down the vent, causing damage to oven's components. Consult a professional if you believe that your vent could be blocked or clogged. They will determine the cause and give suggestions for clearing or cleaning the vent.
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