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How to Repair Common Oven Parts The oven is an appliance used in kitchens that is typically used to cook food. The heat from the oven sterilizes food items and kills most of the micro-organisms present in them. All bakers require an accurate oven thermometer. Understanding how ovens uk will help improve your baking and roasting skills and eliminate those annoying hot spots that can cause havoc with cookies, cakes and other baked products. Thermostat The thermostat is a crucial component of your oven. It is used to ensure that the temperature of food corresponds to the temperature that you set on the control panel. It could be a problem, just like any other switch or sensor that is electro-mechanical. The oven can overheat or underheat, or simply not maintain the temperature you set. The oven thermostat is essentially tiny strips of two different metals joined. When exposed to heat the various metals expand and contract at different rates, making or breaking an electrical circuit. When the thermostat's metal is at the temperature you've set on the control panel, it shuts off power to the heating element. As the oven cools it expands the bimetallic strip to re-establish the circuit before turning on heating element. This process is repeated over and over to ensure a constant temperature in your oven. To identify a issue with the thermostat, you'll need to unplug the oven and verify that all of the screws that hold it in place have been removed. Set your multimeter to the Ohms setting, and then test the thermostat. If the multimeter reads 0 or very close to it the thermostat is functioning properly and doesn't need to be replaced. If the multimeter doesn't read anything it means that the thermostat is defective. It must be replaced. Cooker Spare Parts suggests that you replace your thermostat with a thermostat of the same type as the old one. These thermostats are available at a reasonable price online or at a kitchen goods shop. Bake Element The bake element is crucial for the proper operation of your oven. It provides heat that allows it to cook food items. It's a simple component that transforms electricity into the high temperatures needed to bake, roast, and broiling. Electric ovens and ranges often have heating elements, which can be exposed or hidden beneath the floor. In general, oven heating elements are constructed from high-resistance materials like nickel-chromium alloy. They work by converting electricity into heat through resistance. This heat is then radiated through the oven's interior to reach the desired temperature for cooking different types foods. When you turn on the oven the heating elements start to produce heat through 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 begins to get hotter. The element will appear red hot when it is at the desired temperature. The baked element is the main source of heat for most oven functions. It's usually located at the bottom of the oven, and is used for the self-cleaning feature in a variety of ovens that are automatic. When it starts to burn out you may notice that your oven doesn't preheat as quickly or that your food is not fully cooked. To check for a working oven baking element plug your multimeter into its red and black ports, and then place the probes made of steel against each other on one end of the element. The other end of the element against one terminal and place your hand on it. If the element feels warm, remove it and test it again. If it's not, take off the element and start testing again. Broil Element The broil element is usually located at the upper part of the oven cavity and provides the same high temperature as a grill to roast or grill food. The broil setting of your oven is a great option for quickly searing meat, crisping vegetables, reheating lasagna or making caramel on top of the casserole. Similar to the bake element the broiler heating element converts electrical energy into heat through the process of resistance. It is comprised of an inner core comprised of metal wires, which are wrapped in an insulating, expanded material called perlite. 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 lower the temperature of the broil element which makes it more secure and efficient 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. Utilizing a different wattage may cause damage to 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 ratings and wattage of your oven. It is also advisable to check the resistance of your old element and compare it to the power output of your new broiler heating element. The greater the resistance, the more the power that an oven element draws from. If your broiler heating element is acting up or doesn't work at all, you should replace it as soon as possible. Your oven must work properly for you to be able to cook your favorite foods. However, if your oven isn't working at all or only 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 cooking without opening the door and let the heat escape. The light will also let you know when the casserole has been cooked. 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. First, remove the light bulb that was in use and locate the new one. It is possible to search online for the right replacement bulb that is compatible with the wattage of your oven. Some ovens utilize normal appliance bulbs of 40 watts, while others need a halogen lamp up to 50 watts. Be aware that the oil in your hands can damage the halogen bulb, so it is recommended to use cotton gloves when handling it. Remove the glass casing of the bulb prior to replacing it. It's important to take this step slowly to ensure that you don't break it. Then, you'll need to remove the air from the bulb and replace it with the mixture. This will prolong the lifespan of the filament. If your bulb is constantly going out, there may be a larger electrical issue that should be addressed by an expert. Make sure you double-check that you're using the right bulb for your oven, and look over your Use and Care Guide for more troubleshooting advice. And remember that it's always an excellent idea to unplug your oven and disconnect it from the outlet before you begin any repair. This will prevent you from being shocked by electricity. Vent Tube The vent tube is a crucial oven component because it allows for a small amount of airflow to be created inside the cavity. This allows the bake element to circulate heat around the oven and ensures that the temperature is evenly dispersed. It also allows vapors to escape from the oven, and smoke to be drawn from the cooking surface. It is crucial to ensure the proper operation of any electric or gas oven. Vents in ovens can get blocked by various reasons. Accidental spills and splatters from cooking can leave sticky residues on the oven vents, which can attract dust and other particles that can eventually cause clogs or blockages over time. Grease and oil may also become airborne and then settle around vents. Other environmental factors, such as kitchen renovations and construction work, can introduce dust and other contaminants into the vents, leading to obstructions or clogs. Depending on the model of the oven, the vent tube can comprise a spreader 46 and an fill tip 12 and the bottle guide 20 which are integrally formed into the pipe 32. For example, the bottle guide 20 could have a tapered outer layer which is in harmony with the tapered inner surface of the spreader 46 to allow the vent tube to be smoothly fitted into various sizes and forms of bottle necks. A clogged vent tube can cause a decrease in pressure inside the enclosure, which could cause a downdraft that pulls exhaust forward and down the vent, damaging the oven components. If you think that your vent tube is clogged or blocked, call a professional for help. They will determine the cause and provide recommendations for removing or cleaning the vent.