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How to Repair Common Oven Parts The oven is an appliance used in kitchens that is used to cook food items. The heat generated by the oven sterilizes food and kills most of the micro-organisms present in them. All bakers require an accurate oven thermometer. Understanding how your oven works will improve your baking and roasting abilities and eliminate those annoying hot spots that cause havoc with cakes, cookies and other baked products. Thermostat The thermostat is an important part of your oven. It assists in ensuring that the temperature of food corresponds to the temperature you set on the control panel. However, just like any other electro mechanical switch or sensor, it can sometimes have problems that result in the oven going over heat or under heat, or just not be able to maintain the temperature you've set. The oven thermostat is an extremely small strip of two different metals that are bonded together. 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 heating element's power. As the oven cools the bimetallic strips expand to re-establish the circuit before turning on heating element. This cycle is repeated continuously to ensure a constant oven temperature. To identify a problem with the thermostat you'll need to unplug the oven and verify that all screws holding it in place have been removed. If you own a multimeter (which is a tool that detects the electrical current), set it to the ohms setting, and then test the thermostat. If the multimeter reads zero or close to it, then the thermostat is operating properly and doesn't need to be replaced. If the multimeter fails to show 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 as the one you have. The thermostats are available for purchase at a reasonable price on the internet or in a kitchen products shop. Bake Element Ovens aren't complete without the bake element which creates heat to make your oven cook food. It's a simple component that transforms electricity into high temperatures for baking, roasting, and broiling. Heating elements are commonly found in electric ranges and ovens, and they can be either covered or concealed under the floor of the oven. In general oven heating elements are made up of high-resistance materials such as nickel-chromium. They work by converting electrical energy into heat by the process of resistance, which radiates outwards into the oven's interior to raise the temperature to the desired degree to cook different kinds of food. When you turn on the oven the heating elements start to produce heat due to the high-voltage current flowing across the surface of the metal. When oven uk ovensandhobs is flowing 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 main source of heat used in most oven functions. It's usually located at the in the bottom of the oven. Many ovens with automatic heating also use it for self-cleaning. You may notice that your oven doesn't get hot as fast or that your food hasn't cooked completely. To determine if you have a functioning oven baking element connect your multimeter to its black and red ports, and then place the probes made of steel against each other on one side of your device. The other end should be placed against one of its terminals and put your hand on it to feel whether the element is warm to the touch. If not, remove it and try again. Broil Element The broil element is typically located in the top of the oven cavity and provides high heat like grills to roast or grill food items. The oven's broil setting can be a great way to quickly cook meat or crisp vegetables, to heat up lasagna or caramelize the top of the casserole. Similar to the bake element, the broiler heating element transforms electrical energy into heat by the process of resistance. It is made up of an internal core of wires made of metal wrapped in insulating perlite material. The inner core is then wrapped in an outer layer of stainless steel to shield the wires from direct contact with the oven. The three-layer design helps to reduce the temperature of the broil element, making it more secure than older designs. While you may use any baking or broiling heating element in your oven, make sure to select one that is compatible with the rated wattage of your oven. Utilizing a different wattage may cause damage to your oven or cause it to overheat. The current and voltage ratings of the new heating elements are available on the control panel of your oven. This will allow you to examine the power and rating of your oven. It is also advisable to check the resistance of your old element and compare it to the power of the new broiler heating element. The greater the resistance of an oven element the more power it draws. Replace your broiler element immediately If it's not functioning or if it's acting up. It is crucial that your oven function correctly to be able to cook all your favorite food items. If your oven does not function at all, or only intermittently, the issue may be a problem with a different component. Light Bulb and Assembly The oven light lets you keep an eye on your food while it cooks without having to open the door and let the heat escape. The light also informs you when the casserole is ready. It's not uncommon for the light bulb to fail. It can be quite frustrating, but you can fix it yourself. Make sure that the breaker is not tripped and that the connector has three prongs. First, remove the old light bulb and locate the new one. It is possible to search online for a replacement that is compatible with the wattage and model of your oven. Some use standard 40-watt appliance bulbs some require halogen bulbs up to 50 watts. Be aware that the oils from your hands can cause damage to the halogen bulb, so consider using cotton gloves when handling it. Before putting the new bulb in it is important to first take it out of its glass casing. It is important to take this step slowly to ensure that you don't break it. After that, you'll need to remove the air from the bulb and fill it up with gas mixture. This will ensure a longer lifespan for the filament. If your bulb keeps running out, it could be an electrical problem that requires an expert to fix it. Make sure you're using the correct oven bulb and consult your Use and Care Guide for additional troubleshooting tips. Be sure to unplug your oven and shut off the power before beginning any repairs. This will help protect you from electric shock. Vent Tube The vent tube is an important oven element because it allows for a tiny 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 distributed. It also allows vapors from the oven to escape, and allows smoke to be drawn away from the cooking surface. It is vital for the proper functioning of any electric or gas oven. Vents in ovens can get clogged or blocked by several factors. Accidental spills or splatters while cooking can leave sticky residues on oven vents, which could attract dust and other particles that can eventually cause blockages or clogs over time. Grease and oil particles may become airborne and settle on the vents, and vice versa. Other environmental factors, like kitchen construction and renovations, can introduce dust or other pollutants into the vents, which can cause obstructions or clogs. Based on the type of the oven the vent tube may include a spreader 46, an fill tip 12 and an a bottle guide 20 that are integrally formed into the pipe 32. For instance, the bottle guide 20 might have a tapered outer surface that compliments the complementarily tapered inner surface of the spreader 46 to allow the vent tube to be smoothly placed into various sizes and shapes of bottle necks. A clogged vent tube can cause a decrease in pressure inside the enclosure, which could cause an updraft that pulls exhaust forward and down the vent, causing damage to the oven's components. If you think that the vent tube in your oven is clogged or blocked, contact a professional for help. They will identify the problem and make recommendations on how to remove or clean the vent.