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How to Repair Common Oven Parts The oven is an appliance in the kitchen that is typically used to cook food. The heat generated by the oven sterilizes food items and kills the majority of micro-organisms that are present in them. All bakers need an accurate oven thermometer. Knowing how your oven works will help improve your baking cooking, roasting and cooking abilities. It can also help you avoid those annoying hot spots which can cause damage to cakes, cookies and baked goods. Thermostat The thermostat is among the most vital components of your oven, helping make sure that the temperature of your food matches what you've set on the control panel. However, just like any other electro mechanical switch or sensor it may have issues that can cause the oven to over heat or under heat, or just not be able to keep the temperature you've set. The oven thermostat is tiny strips of two different metals joined. When heated to a certain temperature, the two metals expand and bend at different rates. This creates an electrical circuit. When the metal in your thermostat reaches the temperature that you have set on the control panel it will shut off the power to the heater. As the oven cools the bimetallic strips expand in a circuit, re-establishing it and turning on the heating element. This cycle is repeated continuously to ensure a constant oven temperature. To diagnose a problem with the thermostat, you'll need to unplug the oven and make sure that all of the screws holding it in place have been removed. Set your multimeter to the Ohms setting and then test the thermostat. If the multimeter displays zero or close to zero, the thermostat is functioning properly and doesn't need to be changed. If the multimeter doesn't read anything, it's likely that the thermostat is defective and must be replaced. Cooker Spare Parts recommends that you replace the thermostat with a fresh one of the same kind that your old one. These thermostats are available at a reasonable cost online or in the kitchen store. Bake Element The bake element is essential to the operation of your oven. It provides heat that allows it to cook food items. It's an easy component that transforms electricity into high temperatures for baking, roasting, and broiling. Heating elements are usually found in electric ranges and ovens and can be either uncovered or hidden under the oven's floor. In general, oven heating elements are constructed from high-resistance materials like nickel-chromium alloy. They work by converting electrical energy into heat via the process of resistance, which radiates outwards into the oven's interior, causing it to increase the temperature to the desired temperature to cook different kinds of food items. When you start the oven the heating elements start to generate heat by the high-voltage current flowing across the metal surface. When the electric current runs through it, the element heats up. When the element reaches its temperature it begins to be lit up in red hot. The baked element is the primary source of heat in most oven functions. It is typically located at the lower levels of the oven. Many automatic oven models also use it for self-cleaning. You may notice that your oven doesn't heat up as quickly, or that your food isn't fully cooked. Connect your multimeter to its red and black ports. Then, press the probes made of metal on one side of the element to each other. Set the other end of the probe against one of its terminals and then place your hands on it to determine if the element is warm to the touch. If it's not, remove the element and start testing again. Broil Element The broil element, usually found at the top of the cavity, offers high temperatures to brown or char foods. The broil setting in your oven is an excellent choice for quickly searing meat or vegetables, crisping them up, reheating lasagna, or caramelizing the top of a casserole. The broiler heating element is similar to the bake element in that it converts electrical energy by resistance into heat. It is made up of an internal core of metal wires wrapped in insulating perlite product. The inner core is enclosed in an outer layer of stainless steel to protect the wires from direct contact with the oven. The three-layer design helps lower the temperature of the broil element, making it safer than the older models. While you can use any baking or broiling heating element in your oven, you should choose one that is in line with the wattage that is recommended for your oven. A different wattage could harm your oven, or cause it overheat. The current and voltage ratings of the new heating elements can be located on the control panel of your oven. This allows you to determine the wattage and rating of your oven. Check the resistance of the old element, then compare it to the wattage rating of the new one. The higher the resistance of an oven element, the more power it draws. If your broiler's heating element is not working or functions at all, you must replace it immediately. Your oven needs to function properly for you to to cook your favorite meals. If your oven doesn't work in any way, or just intermittently, then the issue could be in a different part. Light Bulb and Assembly The light lets you keep an eye on your food as it cooks without opening the doors and let the heat escape. The light also lets you know when your casserole is ready. However, it's not uncommon for the light bulb to fail. It can be frustrating but you can fix it yourself. Before you begin, make sure that the breaker hasn't been tripped and that the three-prong connector is in good condition. Take out the old bulb and then find the new one. You may need to search the internet to find the correct replacement bulb that matches your oven's wattage. Some ovens have standard appliances with bulbs that run at 40 watts some require a halogen lamp up to 50 watts. It is recommended to use cotton gloves to shield the halogen bulbs from damage caused by oil. Remove the glass casing from the bulb prior to replacing it. You should do this slowly to avoid breaking it. Then, you'll need to remove the air from the bulb and replace it with an appropriate mixture. This will provide a longer life for the filament. If your bulb is constantly being replaced, it could be a bigger electrical problem that needs to be handled by an expert. Verify that you're using the correct oven bulb and look over your Use and Care Guide for additional troubleshooting tips. Remember that it's a good idea to unplug your oven and disconnect it from the outlet before you start any repair. please click the next webpage will keep you from getting an electric shock. Vent Tube The vent tube is a vital oven component that permits an airflow within the cavity. This allows the bake element to circulate heat throughout the oven, making sure that the temperature is evenly distributed. It also allows the vapors to escape from the oven and smoke to be drained from the cooking surface. It is essential to ensure the proper operation of any gas or electric oven. Vents for ovens can become blocked or clogged due to a variety of factors. Accidental spills or splatters can leave sticky residues on oven vents. They can attract debris, dust and other contaminants that can cause obstructions in the course of time. Grease and oil particles can become airborne and settle on the vents, and vice versa. Other environmental factors like kitchen and construction work can introduce dust into the vents. This can cause clogs. Based on the oven model the vent tube could include an a bottle guide 20 or spreader 46 as well as a fill tip 12 that are integrally formed with the pipe 32. oven and hob could have a tapered outer edge that complements the tapered inner edge of the spreader, allowing the vent tubes to be placed smoothly into different sizes and shapes bottle necks. A clogged or blocked vent tube can cause an increase in pressure within the enclosing structure, which can result in a downdraft that pushes exhaust down the vent and backwards through the oven's burners, which can cause 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 offer suggestions for removing or cleaning the vent.