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How to Repair Common Oven Parts The oven is a kitchen appliance that is used to cook food. The heat generated by the oven sterilizes food items and kills the majority of microorganisms. Every baker needs an accurate oven thermometer. Understanding how your oven functions will improve your baking, roasting and cooking skills. It will also eliminate the annoying hot spots that can ruin cakes, cookies and baked products. Thermostat The thermostat is an essential component of your oven. It is used to ensure that the temperature of food corresponds to the temperature you set on the control panel. However, just like any other electronic mechanical switch or sensor it can have issues that can cause the oven to over or under heat, or simply not be able to keep the temperature you've set. The oven thermostat is basically a small strip made of two different metals joined. When heated to a certain temperature, the two metals expand or flex at different rates. This creates an electrical circuit. When the metal in the thermostat reaches the temperature you've set on your control panel it shuts off the power to the heating element. As the oven cools, the bimetallic strip contracts, re-establishing the circuit and activating the heating element. This cycle is constantly repeated to ensure a constant temperature in your oven. It is necessary to disconnect the oven and all screws removed in order to determine the problem with the thermostat. If you own a multimeter (which is a tool that analyzes the electrical current) set it 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 require to be replaced. If the multimeter fails to read anything, the thermostat is faulty. It is time to get it replaced. Cooker Spare Parts suggests that you replace your thermostat with a similar type as the old one. They can be purchased through the internet or at the kitchen store, and are available at a reasonable price. Bake Element The bake element is essential to the operation of your oven. It provides heat that lets it cook food items. It's a simple element that converts electricity into high temperatures for baking, roasting, and broiling. Electric ovens and ranges usually include heating elements that can be exposed or hidden under the floor. In general, oven heating elements consist 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 for cooking different types of food items. When you start the oven the heating elements start to produce heat through the high-voltage current flowing across the metal's surface. When electricity runs through it the element gets heated up. The element will glow red hot when it reaches the temperature you want. The baked element is the primary source of heat for the majority of oven functions. It is typically located at the bottom of the oven. Many ovens with automatic heating also have it to clean themselves. When it begins to smoke you may be noticing that your oven doesn't heat up as fast or that your food is not fully cooked. To check for a working oven baking element connect your multimeter to its red and black ports, then rub the metal probes against each other on one side of the element. Place the other end of the element on one terminal and place your hand on it. If the element feels warm, remove it and test it again. If it's not, remove the element and try again. Broil Element The broil element is usually located at the top of the oven cavity and provides the same high temperature as grills to roast or grill food items. The oven's broil setting can be ideal for quick sear meat or crisp vegetables, to heat up lasagna or caramelize the top of the casserole. Similar to the bake element the broiler heating element converts electrical energy into heat via the process of resistance. It is comprised of an inner core consisting of metal wires, which are wrapped in an insulating, expanded material called perlite. The inner core is wrapped in an outer layer of stainless steel, which protects the wires from direct contact with the oven. The three-layer structure reduces the temperature of the broil element, making it safer and more efficient than older styles of elements. You can use any heating element you want to use for baking or broiling in your oven. However, you should select one that matches your oven's rated wattage. Utilizing a different wattage may 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 control panel of your oven. You should also check the resistance of your previous element and compare it to the power of the new broiler heating element. The greater the resistance, the more the power that an oven element draws from. If the heating element in your broiler is malfunctioning or isn't working at all, you must replace it right away. Your oven must function properly for you to to cook your favorite meals. If your oven isn't functioning at all, or is only working intermittently, the issue may lie with another part of your oven. Light Bulb and Assembly The oven light lets you keep an eye on your food as it cooks, without having to open the door to let heat escape. The light will also notify you when the casserole is finished. However, it's not uncommon for the light bulb to go out. It can be quite frustrating, but you can do it yourself. Before you begin, make sure that the breaker hasn't tripped and that the three-prong connector is intact. First, take out ovens and hobs that was in use and locate the new one. It is possible to search online to find a replacement that is compatible with the wattage and model of your oven. Some use standard 40-watt appliance bulbs, while others require a halogen bulb up to 50 watts. You should consider using cotton gloves to shield the halogen bulbs from the damage caused by oil. Remove the glass casing from the bulb before replacing it. It's crucial to take this step slowly to ensure that you don't damage it. You'll have to remove the air from the bulb and replace it with the mixture. This will ensure a longer lifespan of the filament. If your light bulb is always blinking, it may be a larger electrical issue that must be handled by an expert. Make sure that you're using the correct 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 help protect you from electric shock. Vent Tube The vent tube is an essential oven component that permits a small airflow inside the cavity. This permits the bake element to circulate heat throughout the oven, ensuring that the temperature is evenly distributed. It also allows the vapors that are released from the oven to escape, as well as allows smoke to be drained away from the cooking surface. It is vital for the efficient operation of any gas or electric oven. Oven vent tubes can become clogged or blocked by several reasons. Accidental spills or splatters while cooking can leave sticky residues on oven vents, which can attract dust and other debris that could eventually cause obstructions or blockages in the course of time. Grease and oil particles may be blown into the air and settle around the vents, as well. Other environmental factors such as kitchen and construction work can cause dust to enter the vents. This can cause clogs. Based on the type of the oven the vent tube may comprise a spreader 46 and a fill tip 12, and a bottle guide 20 that are incorporated into the pipe 32. For instance, the bottle guide 20 could have a tapered outer layer that is complemented by the tapered inside of the spreader 46. This allows the vent tube to be easily fitted into various sizes and designs of bottle necks. A blocked or clogged vent tube could cause an increase in pressure within the structure that surrounds it, which can create a downdraft situation which pulls exhaust down vent and then backwards over the oven burners, causing damage to the oven components. If you suspect that your vent tube is blocked or blocked, consult a professional for help. They will diagnose the issue and make recommendations on how to clean or clean the vent.