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How to Repair Common Oven Parts Ovens are a kitchen appliance that is commonly used to cook food. The heat from the oven sterilizes food items and kills the majority of microorganisms. An accurate oven thermometer is essential for all bakers. Understanding how your oven works will help improve your baking and roasting abilities and eliminate those annoying hot spots that cause havoc with cakes, cookies and other baked items. Thermostat The thermostat is among the most important parts of your oven, assisting to ensure that the temperature of your food matches what you've set on your control panel. As with any electronic mechanical switch or sensor it can sometimes have problems that can cause the oven to over heat or under heat, or simply not be able to keep the temperature at the level you've set. oven and hob is an extremely small strip of two different metals connected. When exposed to heat, the various metals expand and contract at different rates, making or breaking an electrical circuit. When the metal in the thermostat is at the temperature you've set on the control panel, it turns off the power to the heating element. As the oven cools, the bimetallic strips contract, re-establishing circuit and turning on heating element. This cycle continues for a long time to ensure a constant oven temperature. You'll need the oven disconnected and all screws removed to identify 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 the thermostat is functioning properly and doesn't require to be replaced. If the multimeter isn't reading anything, it's likely that the thermostat is not working properly and must be replaced. Cooker Spare Parts recommends that you replace the thermostat with a new one of the same kind as your old one. They can be purchased online or at an appliance store and can be purchased at a reasonable price. Bake Element Ovens aren't complete without the bake element, which provides heat to make your oven cook food. It's an easy component that converts electricity into high temperatures for baking, roasting and broiling. Heating elements are typically found in electric ovens and ranges and are either covered or concealed under the floor of the oven. In general oven heating elements comprise of high-resistance materials like nickel-chromium. They convert electricity into heat through resistance. This heat then radiates through the oven's interior to achieve the desired temperature to cook various types of food. When you turn on your oven, the heating element begins to produce heat through the high-voltage electricity moving across its metal surface. The element is a ribbon or coil (straight or corrugated) of wire. When the electric current passes through it, it begins to heat up. When the element reaches its desired temperature, it starts to glow red hot. The baked element is the primary source of heat for most oven functions. It's usually located at the bottom of the oven, and is used to perform the self-cleaning function in many automatic oven models. When it begins to smoke you may find that your oven isn't able to heat up as fast or that your food isn't cooked through completely. Connect your multimeter to its black and red ports. Then, touch the probes made of metal on one end of the device against each other. Place the other end against one of its terminals and place your hand on it to feel if the element is warm to the contact. If it's not, take off the element and test again. Broil Element The broil element, which is usually found at the top of your cavity, allows high-temperature heat to brown or char foods. The broil setting in your oven is a great option for quickly grilling meat, crisping vegetables, reheating lasagna, or caramelizing the top of the casserole. The broiler heating element is similar to the bake element in that it converts electrical energy via resistance into heat. It is comprised of an inner core of wires made of metal wrapped in insulating perlite product. The inner 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 reduces the temperature of the broil element which makes it more secure and efficient than older types of elements. While you can use any heating element in your oven, it is important to choose one that matches the wattage that is recommended for your oven. Using a different wattage can damage your oven or cause it to overheat. You can check the power of your oven and the rating of the new heating element by looking at their current and voltage ratings on the oven's control panel. Examine the resistance of the old element, then compare it to the wattage rating of the new one. The greater the resistance of an oven element the more power it draws. If the heating element in your broiler 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. If your oven doesn't operate in any way, or just intermittently, the issue may be with another part. Light Bulb and Assembly The oven light helps keep an eye on the food while it cooks without having to open the door and let the heat escape. oven hob will also notify you when the casserole is finished. It's not uncommon for the light bulb to fail. It can be a hassle but it's an simple fix that you can tackle yourself. Make sure the breaker is not tripped and that the connector has three prongs. First, remove the old light bulb and then locate the new one. It is possible to look online for the right replacement bulb that matches the wattage of your oven. Some ovens use standard appliance bulbs that run at 40 watts some require a halogen lamp up to 50 watts. Consider using cotton gloves to protect the bulbs from damage caused by oil. Before you put the new bulb in place, you should first take it out of its glass casing. It is important to do this slowly so that you don't break it. You'll then need 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 always blinking it could be due to an electrical issue that requires a professional to fix. Be sure to double check that you're using the right bulb for your oven, and consult your Use and Care Guide for more troubleshooting tips. Make sure to unplug the oven and turn off the power before you start any repairs. This will protect you from electrical 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, 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 essential to ensure the proper operation of any electric or gas oven. Vents for ovens can become clogged or blocked by several reasons. Accidental spills or splatters can leave sticky remnants in oven vents. They can attract dust, debris and other contaminates that could cause clogs over time. Grease and oil particles can become airborne and settle around the vents, and vice versa. Other environmental factors, such as kitchen renovations and construction work, could introduce dust and other contaminants into the vents, which can cause clogs or blockages. Based on the model of the oven, the vent tube can comprise a spreader 46 and a fill tip 12, and a bottle guide 20 that are integrated into the pipe 32. The bottle guide 20 can have a tapered outer edge that matches the tapered inner edge of the spreader to allow the vent tubes to be inserted easily into different sizes and shapes bottle necks. A blocked vent tube could cause a decrease in pressure inside the enclosure which can lead to an updraft that pulls exhaust backwards and then down the vent, causing damage to oven components. If you believe that your vent tube is blocked or blocked, call a professional for help. They will determine the cause and provide suggestions on how to clean or clean the vent.