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How to Repair Common Oven Parts Oven is a kitchen appliance that is commonly used to cook food. The heat from the oven sterilizes food and kills the majority of micro-organisms in them. A precise oven thermometer is essential for all bakers. Understanding how your oven works will improve your baking and roasting skills, and eliminate those irritated hot spots that can cause havoc with cookies, cakes and other baked products. Thermostat The thermostat is a crucial element of your oven. It is used to ensure that the temperature of food corresponds to the temperature you have set on the control panel. It can be problematic as with any other sensor or switch that is electro-mechanical. The oven may overheat or underheat, or not keep the temperature you have set. The oven thermostat is basically an extremely small strip of two different metals that are joined. When heated, the metals expand and bend at different rates. This creates an electrical circuit. When the metal in your thermostat reaches the temperature you 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 heating element. This process continues to ensure a constant temperature in your oven. The oven must be disconnected and all screws removed in order to determine the problem with the thermostat. Set your multimeter to the Ohms setting, and then test the thermostat. If the multimeter reads zero or very close to it then the thermostat is operating properly and doesn't require to be replaced. If the multimeter doesn't read anything at all, then the thermostat is not working properly and must be replaced. Cooker Spare Parts suggests that you replace your thermostat with one of the same model as the one you have. They can be purchased through the internet or at an appliance store and can be purchased at a reasonable price. Bake Element Ovens are not complete without the bake element, which creates heat to make your oven cook food. It's a small element that converts electricity into the high temperatures required for baking, roasting, and broiling. Electric ovens and ranges usually have heating elements, which can be either exposed or hidden under the floor. In general, oven heating elements consist of high-resistance elements such as nickel-chromium. They convert electrical energy into heat using resistance. This heat then radiates through the oven's interior to reach the desired temperature to cook various types of food. When you turn on your oven the heating element gets to generate heat from the high-voltage electrical energy moving across its metal surface. When electricity flows through it the element gets heated up. The element will glow red hot when it is at the desired temperature. The baked element is the primary source of heat for most oven functions. It is typically located at the lower levels of the oven. Many automatic oven models also have it to clean themselves. You may notice that the oven does not get hot as fast, or that your food hasn't been fully cooked. Connect your multimeter to its red and black ports. Then, touch the metal probes on one end of the element to each other. Place the other end against one of its terminals, and place your hand on it to test if the element is warm to the touch. If not, take it off the element and try again. Broil Element The broil element is usually located in the top of the oven's cavity and produces high heat like grills to cook or brown food. Broil settings in ovens are an excellent way to quickly grill meat or crisp vegetables, to heat up lasagna or caramelize the top of a casserole. The broiler heating element is comparable to the bake element in that it converts electrical energy via resistance into heat. It is comprised of an inner core consisting of wires made of metal, encased in an insulating and expanded product known as perlite. The inner core is then encased in an outer layer of stainless steel, which protects the wires from direct contact with the oven. The three-layer structure helps lower the broil element's temperature, making it safer and more efficient than older styles of elements. While you may use any heating element in your oven, it is important to choose one that matches the wattage that is recommended for your oven. A different wattage could harm your oven, or cause it overheat. You can determine the wattage of your oven and the rating of the new heating element by checking their current and voltage ratings on the control panel of your oven. Check the resistance of the previous element, then compare it to the wattage ratings of the new one. The greater the resistance, the greater 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 favorite meals. If your oven isn't working at all, or is only working intermittently, the issue could be with a different part of your oven. Light Bulb and Assembly The oven light lets you keep an eye on the food as it cooks, without having to open the door and let heat escape. The light also lets you know when your casserole is ready. It's not unusual for the bulb to go. It can be a hassle, but you can fix it yourself. Make sure that the breaker is not tripped and that the connector has three prongs. Remove the old bulb, and then find the new one. You may need to search the internet for a replacement that matches the wattage and type of oven you have. Some ovens have standard appliance bulbs of 40 watts and others require a halogen lamp up to 50 watts. It is recommended to use cotton gloves to shield the bulbs from damage caused by oil. Before you put the new bulb in You must first take it out of its glass casing. Do this slowly to avoid breaking it. You'll have to remove the air from the bulb and replace it with an appropriate mixture. This will ensure a longer lifespan for the filament. If your bulb is constantly blinking, it could be a bigger electrical problem that needs to be addressed by an expert. Double check that you are using the correct oven bulb and look over your Use and Care Guide to get more help in troubleshooting. Remember to unplug the oven and turn 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 that allows for a small airflow inside the cavity. This allows the bake-element to circulate heat throughout the oven, ensuring that the temperature is evenly distributed. It also allows the vapors be released from the oven, and smoke to be drained from the cooking surface. hobs and ovens Ovens & Hobs is necessary to ensure the proper operation of any gas or electric oven. Vents in ovens can get clogged or blocked by several factors. Accidental spills or splatters can leave sticky residues on oven vents. These can attract debris, dust and other contaminates that could cause obstructions over time. Grease and oil can also become airborne and then settle on vents. Other environmental factors, like kitchen renovations and construction work can bring dust or other pollutants into the vents, resulting in clogs or blockages. Based on the oven model the vent tube could comprise an a bottle guide 20, spreader 46 and fill tip 12 that are constructed with the pipe 32. For instance, the bottle guide 20 may have a tapered outer layer that is complemented by the tapered inside of the spreader 46 to allow the vent tube to be easily inserted into different sizes and shapes of bottle necks. A clogged vent tube can cause a decrease in pressure inside the enclosure, which can cause a downdraft that pulls exhaust backwards and down the vent, damaging the oven's components. If you believe that your vent tube is blocked or blocked, call a professional for help. They will determine the cause and offer suggestions on how to clean or clean the vent.