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How to Repair Common Oven Parts Ovens are a common kitchen appliance used to cook food. The heat from the oven sterilizes food items and kills most of the micro-organisms present in them. An accurate oven thermometer is a necessity for bakers of all kinds. Knowing how your oven functions can help you improve your baking and roasting skills, and eliminate those irritated hot spots that wreak havoc with cakes, cookies and other baked products. Thermostat The thermostat is an essential part of your oven. oven uk helps to ensure that the temperature of food corresponds to the temperature that you set on the control panel. As with any electro mechanical switch or sensor it can have issues that can cause the oven to over or under heat, or just not be able to maintain the temperature you've set. The oven thermostat is essentially tiny strips of two different metals that are bonded. When heated, the metals expand and bend at different rates. This creates an electrical circuit. When the metal in your thermostat reaches the temperature that you set on your control panel it will shut off the power to the heater. As the oven cools, the bimetallic strips contract, re-establishing circuit and turning on the heating element. This process is repeated over and over to maintain a constant temperature in your oven. To diagnose a issue with the thermostat, you'll need to unplug the oven and make sure that all 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 then the thermostat is operating properly and doesn't need to be replaced. If the multimeter doesn't read anything at all, then the thermostat is not working properly and needs to be replaced. Cooker Spare Parts suggests that you replace your thermostat with a similar model as the one you have. They can be purchased online or at a kitchen goods store, and are available at a reasonable price. Bake Element Ovens can't be complete without the bake element which is the element that heats up to help your oven cook food. It's a small element that converts electricity into the high temperatures needed to bake, roast, and broiling. Electric ovens and ranges typically have heating elements, which are either visible or hidden beneath the floor. In general oven heating elements are made up of high-resistance elements such as nickel-chromium. They work by converting electrical energy into heat by the process of resistance which then radiates through the oven interior to raise the temperature to the desired temperature to cook different kinds of foods. When you start your oven the heating element starts to produce heat through the high-voltage electricity that flows across its metallic surface. When electricity flows through it the element is heated. When the element reaches its desired temperature it starts to be lit up in red hot. The baked element is the primary source of heat in most oven functions. It's usually located at the bottom of the oven. A lot of ovens that are automated also utilize it to clean themselves. When it begins to smoke, you might find that your oven isn't able to warm as quickly or your food is not cooked through completely. Plug your multimeter in to its red and black ports. Then, press the probes made of steel on one end of the element to each other. The other end should be placed against one of its terminals and then place your hands on it to determine if the element is warm to the contact. If it's not, take off the element and try again. Broil Element The broil element is typically situated in the top of the oven's cavity and produces high heat like grills to cook or brown food. Broil settings in ovens are ideal for quick cook meat or crisp vegetables, to heat up lasagna or caramelize the top of the casserole. The broiler heating element is comparable to the bake element in that it converts electrical energy through 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 enclosed in an outer layer of stainless steel to shield the wires from direct contact with the oven. The three-layer structure reduces the broil element's temperature which makes it more secure and efficient than older types of elements. You can use any heating element you want to use for baking or broiling in your oven. However, it is important to select one that matches the wattage that your oven is rated for. A different wattage could harm your oven or cause it to overheat. You can check the power of your oven as well as the rating of the new heating element by checking their current and voltage ratings on the oven's control panel. It is also advisable to check the resistance of your previous element and compare it with the wattage of your new broiler heating element. The higher the resistance of an oven element, the more power it draws. Replace the broiler element as soon as possible in the event that it isn't functioning or if it's acting up. Your oven must function properly for you to be able to cook your favourite meals. If your oven does not operate in any way, or just intermittently, the issue may be a problem with a different component. Light Bulb and Assembly The oven light helps keep an eye on your food while it cooks without having to open the door to let heat escape. The light also alerts you when the casserole is ready. It's not unusual for the bulb to die. It can be a hassle however, it's an easy fix you can do yourself. Make sure the breaker is not tripped, and that the connector has three prongs. Remove the old bulb, and then look for the new bulb. You may have to look online for a replacement that matches the wattage and type of your oven. Some appliances use standard 40-watt bulbs and others require halogen bulbs up to 50 watts. Be aware that the oil from your hands could damage a halogen bulb, so consider using cotton gloves when handling it. Before you place the new bulb into place it is important to first remove it from its glass casing. It's important to take this step slowly to ensure that you don't damage it. After that, you'll need to eliminate the air inside the bulb and fill it up with an amalgamation of gases. This will provide a longer life for the filament. If your bulb keeps going out it could be due to an electrical problem that requires the assistance of a professional. Verify that you're using the correct oven bulb and consult your Use and Care Guide to get additional troubleshooting tips. Also, remember that it's recommended to unplug your oven and disconnect it from the outlet prior to you begin any repair. This will help protect your from electrical shock. Vent Tube The vent tube is a crucial oven part as it allows for a small amount of airflow to be created inside the cavity. This allows the bake element to circulate heat throughout the oven, making sure that the temperature is distributed evenly. It also allows the vapors escape from the oven and smoke to be drawn from the cooking surface. It is crucial for the proper operation of any electric or gas oven. Vents for ovens can become blocked due to a variety of factors. Accidental spills or splatters can leave sticky remnants in oven vents. They may attract dust, debris and other contaminates that could cause obstructions in the course of time. Grease and oil can also become airborne and settle on vents. Other environmental factors such as kitchen and construction projects can introduce dust into the vents. This can cause clogs. Depending on the oven model the vent tube could include an 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 may have a tapered edge that complements the tapered inside edge of the spreader to allow the vent tubes to be placed smoothly into different sizes and shapes of bottle necks. A clogged or blocked vent tube can cause an increase in pressure within the enclosing structure. This can result in a downdraft that pushes exhaust down the vent and backwards through the oven burners, causing damage to oven components. Consult a professional if think your vent pipe could be blocked or clogged. They will diagnose the problem and provide recommendations for removing or cleaning the vent.
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