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How to Repair Common Oven Parts Oven is a common kitchen appliance used to cook food. The heat generated by the oven sterilizes food and kills the majority of microorganisms. Every baker needs an accurate oven thermometer. Knowing how your oven functions will improve your baking and roasting abilities and eliminate those annoying hot spots that wreak havoc with cakes, cookies and other baked items. Thermostat The thermostat is one of the most crucial components of your oven, helping make sure that the temperature of your food is in line with what you've set in your control panel. Unfortunately, like any other 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 at the level you've set. The oven thermostat is a small strip of two different metals joined. When heated, the metals expand or bend at different rates. This creates an electrical circuit. When the metal in your thermostat reaches the temperature you have set on your control panel, it will shut off the power to the heater. As the oven cools down the bimetallic strip contract to re-establish the circuit before activating the heating element. This process continues to ensure a constant temperature in your oven. You'll need the oven disconnected and all screws removed in order to determine the issue with the thermostat. If you have a multimeter (which is a tool that measures the electrical current), set it to the ohms setting and then test the thermostat. If the multimeter reads zero or very close to it then the thermostat is working correctly and doesn't need to be replaced. If the multimeter fails to read anything it means that the thermostat is defective. It must be replaced. Cooker Spare Parts recommends that you replace the thermostat with a fresh one of the same kind that your old one. The thermostats are sold at a reasonable price online or at a kitchen products shop. Bake Element The bake element is vital for the proper operation of your oven. It provides the heat needed to cook food. It's a simple component that converts electricity into high temperatures for baking, roasting, and broiling. Electric ovens and ranges often have heating elements, which are either visible or hidden under the floor. In general, oven heating elements consist of high-resistance materials such as nickel-chromium. They convert electrical energy into heat through the process of resistance, which then radiates throughout the oven's interior to raise the temperature to the desired temperature to cook various types of foods. When you start the oven, the heating elements begin to produce heat due to the high-voltage current that flows across the surface of the metal. The element is a coil or ribbon (straight or corrugated) of wire, and as the electric current passes through it, it starts to get hotter. The element will turn red hot when it reaches the desired temperature. The baked element is the primary source of heat for most oven functions. It is usually located at bottom of the oven. Many automatic oven models also utilize it for self-cleaning. You might observe that the oven does not get hot as fast or that your food isn't cooked completely. Plug your multimeter in to its red and black ports. Then, you can press the metal probes on one side of the element against each other. Place the other end against one of its terminals, and put your hand on it to determine whether the baking element is warm to the touch. If it's not, remove the element and test again. Broil Element The broil element is typically situated in the upper part of the oven's cavity and produces high heat like grills to cook or brown food items. Broil settings in ovens are a great way to quickly grill meat or crisp vegetables, to heat up lasagna or caramelize the topping of a casserole. Similar to the bake element the broiler heating element converts electrical energy into heat via the process of resistance. It is made up of an internal core of metal wires wrapped in insulating expanded perlite product. The core of the element is covered with a stainless steel outer layer to shield the wires from direct contact with the oven. The three-layer design helps lower the temperature of the broil element, making it safer than older styles. While you are able to use any baking or broiling heating element in your oven, make sure to choose one that is in line with the wattage that is recommended for your oven. Utilizing a different wattage may damage your oven or cause it to overheat. The voltage and current ratings of the latest heating elements can be located on the control panel of your oven. This allows you to determine the ratings and wattage of your oven. You should also check the resistance of your old element and compare it with the power of the new broiler heating element. The greater the resistance, the greater energy an oven element consumes. If your broiler's heating element is acting up or doesn't work in any way, you should replace it immediately. It is crucial that your oven function properly so that you can cook all of your favorite food items. However, if your oven isn't working at all or only intermittently, the issue could be in a different area of your oven. Light Bulb and Assembly The oven light helps you keep an eye on your food cooking without opening the door and let heat escape. The light also alerts you when your casserole is ready. It's not uncommon for the light bulb to go out. It can be a hassle however, it's an easy fix you can tackle 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. It is possible to look online for a replacement that matches the wattage and the type of your oven. Some appliances use standard 40-watt bulbs some require a halogen bulb up to 50 watts. Be aware that the oil in your hands can damage the halogen bulb, so consider using cotton gloves when handling it. Before putting the new bulb in place, you should first remove it from its glass casing. It is important to do this slowly so that you don't break it. Then, hobs and ovens 'll need to evacuate the air inside the bulb and fill it with an amalgamation of gases. This will provide a longer life for the filament. If your bulb is constantly going out, there may be a larger electrical issue that should be handled by an expert. Make sure you're using the correct oven bulb and check your Use and Care Guide to find more troubleshooting advice. Remember to unplug the oven and turn off the power before you start any repairs. This will prevent you from getting an electric shock. Vent Tube The vent tube is an important oven element because it allows for a small amount of airflow to flow within the cavity. This allows the bake element to circulate heat throughout the oven, ensuring that the temperature is evenly dispersed. It also allows the vapors to be released from the oven, and smoke to be drained from the cooking surface. It is vital for the proper functioning of any electric or gas oven. Vents for ovens can become blocked or blocked due to several reasons. Accidental spills and splatters during cooking can leave sticky residues on oven vents, which attract dust and other particles which can lead to clogs or blockages over time. Oil and grease particles can become airborne and settle around the vents, as well. Other environmental factors, such as kitchen renovations and construction work could introduce dust or other pollutants into the vents, resulting in clogs or blockages. Depending on the oven model, the vent tube may comprise a bottle guide 20, spreader 46 and fill tip 12 that are constructed with the pipe 32. The bottle guide 20 can have a tapered outer edge that matches the tapered inside edge of the spreader. This allows the vent tubes to slide smoothly into different sizes and shapes bottle necks. A blocked vent tube may cause a reduction in pressure within the enclosure, which can lead to an updraft that pulls exhaust forward and down the vent, damaging the oven components. If you think that your vent tube is blocked or blocked, call a professional for help. They will determine the cause and offer suggestions for removing or cleaning the vent.