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How to Repair Common Oven Parts The oven is an appliance in the kitchen that is commonly used to cook food items. The heat generated by the oven sterilizes food and kills the majority of microorganisms. All bakers require an accurate oven thermometer. Understanding how your oven works can help you improve your baking and roasting skills, and eliminate those annoying hot spots that can cause havoc with cookies, cakes and other baked items. Thermostat The thermostat is an important element of your oven. hob uk is used to ensure that the temperature of food is in line with the temperature you set on the control panel. However, just like any other electronic mechanical switch or sensor it may have issues that cause the oven to over heat or under heat, or not be able to maintain the temperature at the level you've set. The oven thermostat is basically tiny strips of two different metals bonded together. When exposed to heat, the different metals expand and flex at different rates, creating or breaking an electrical circuit. When the metal in your thermostat reaches the temperature that you have set on your control panel, it will shut off power to the heater. As the oven cools the bimetallic strip expands to re-establish the circuit before activating the heating element. This cycle is constantly repeated to ensure a constant temperature in your oven. It is necessary to disconnect the oven and all screws removed to identify the issue with the thermostat. If you have a multimeter (which is a device that detects electrical current) set it to the ohms setting and then test the thermostat. If the multimeter shows zero or close to zero it means that the thermostat is working properly and doesn't need to be replaced. If the multimeter fails to detect anything it means that the thermostat is defective. It must be replaced. Cooker Spare Parts recommends that you replace the thermostat with a new one of the same kind that your old one. They can be purchased online or at the kitchen store, and can be purchased at a reasonable cost. Bake Element Ovens are not complete without the bake element which is the element that heats up to help your oven cook food. It's a simple element that transforms electricity into high temperatures for baking, roasting, and broiling. Heating elements are typically found in electric ovens and ranges and can be either covered or concealed under the floor of the oven. In general, oven heating elements consist of high-resistance elements like nickel-chromium. They work by converting electricity into heat through resistance. This heat then radiates through the oven's interior to reach the temperature required to cook different kinds of food. When you turn on your oven, the heating element begins to produce heat by the high-voltage electricity that flows across its metallic surface. When the electric current flows through it the element is heated. The element will turn red hot when it reaches the temperature you want. The baked element is the primary source of heat for the majority of oven functions. It's usually located at the lower levels of the oven. Many automatic oven models also utilize it to clean themselves. You might observe that the oven doesn't get hot as fast, or that your food hasn't fully cooked. To check for a working oven baking element connect your multimeter to its red and black ports, and then place the metal probes against each other on one end of your device. Set the other end of the probe against one of its terminals, and place your hand on it to feel whether the element is warm to the contact. If not, take it off and try again. Broil Element The broil element, usually located on the top of the cavity, allows high-temperature heat to cook or char foods. The broil setting of your oven is a great option for quickly grilling meat, crisping vegetables, reheating lasagna or caramelizing the top of the casserole. Similar to the bake element the broiler heating element converts electrical energy into heat through the process of resistance. It consists of an inner core of metal wires wrapped in insulating perlite product. The 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 broil element's temperature, making it more secure and efficient than older types of elements. While you may use any baking or broiling heating element in your oven, make sure to choose one that matches the wattage rating of your oven. Utilizing a different wattage may harm your oven or cause it to overheat. You can verify the power of your oven and the rating of the new heating element by examining their voltage and current ratings on the oven's control panel. It is also advisable to check the resistance of your old element and compare it to the wattage 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 is essential that your oven function properly so that you can cook all of your favorite food items. If your oven doesn't operate at all, or only intermittently, then the issue could be a problem with a different component. Light Bulb and Assembly The oven light helps keep an eye on your food as it cooks, without opening the door and let the heat escape. The light will also let you know when the casserole is finished. It's not uncommon for the light bulb to fail. It can be quite frustrating, but you can do it yourself. Before you begin, be sure that the breaker hasn't tripped and that the three-prong connector remains intact. First, take out the light bulb that was in use and then locate the new one. It is possible to search the internet for a replacement bulb that is compatible with the wattage and model of oven you have. Some ovens use normal appliance bulbs that run at 40 watts some require lamps that are halogen up to 50 watts. You should consider using cotton gloves to shield halogen bulbs from the damage caused by oil. Remove the glass casing of the bulb before you replace it. It's crucial to take this step slowly to ensure that you don't break it. Then, you'll need to evacuate the air inside the bulb and fill it up with gas mixture. This will ensure a longer lifespan for the filament. If your bulb keeps being replaced, it could be a bigger electrical issue that should be handled by a professional. Verify that you're using the correct oven bulb and look over your Use and Care Guide for additional troubleshooting tips. Be sure to unplug your oven and shut off the power before you start any repairs. This will help protect you from electric shock. Vent Tube The vent tube is an essential oven component because it allows for a small amount of 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 to escape from the oven, and smoke to be drawn from the cooking surface. It is essential for proper operation of any electric or gas oven. Oven vent tubes can become blocked or blocked due to several factors. Accidental spills or splatters may leave sticky residues in oven vents. These can attract dust, debris and other contaminants that can cause blockages in the course of time. Oil and grease can also become airborne and settle on vents. Other environmental factors, like construction and kitchen renovations can create dust in the vents. This can cause clogs. Based on the oven model the vent tube may include the bottle guide 20 and spreader 46, as well as fill tip 12 that are formed by the pipe 32. For example the bottle guide 20 may have a tapered outer surface which is in harmony with the tapered inside of the spreader 46 to allow the vent tube to be smoothly inserted into different sizes and forms of bottle necks. A clogged vent tube can cause a loss in pressure inside the enclosure which can lead to an updraft that pulls exhaust backwards and then down the vent, causing damage to oven components. If you suspect that your vent tube is clogged or blocked, contact a professional for help. They will determine the cause and make recommendations on how to clean or clean the vent.