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How to Repair Common Oven Parts The oven is an appliance in the kitchen that is used to cook food. The heat produced by the oven sterilizes foods and kills most of the micro-organisms that are present in them. All bakers need an accurate oven thermometer. Knowing how your oven functions will help improve your baking cooking, roasting and cooking abilities. It can also help you avoid those hot spots that can ruin cookies, cakes and baked products. Thermostat The thermostat is a crucial component of your oven. It is used to ensure that the temperature of food matches the temperature that you set on the control panel. hobs oven can be problematic as with any other switch or sensor that is electro-mechanical. The oven can overheat or underheat, or not keep the temperature you set. The oven thermostat is an extremely small piece of different metals that are bonded. When heated by the oven, the metals expand or flex at different rates. This creates an electrical circuit. When the metal in your thermostat reaches the temperature you set on your control panel, it will shut off heating element's power. As the oven cools, the bimetallic strips contract to re-establish the circuit before activating the heating element. This process continues to ensure that the temperature remains constant within your oven. It is necessary to disconnect the oven and all screws removed to identify a thermostat problem. If you have a multimeter (which is a tool that detects electrical current) set it to the ohms level and then test the thermostat. If the multimeter reads 0 or very close to it then the thermostat is working correctly and doesn't require to be replaced. If the multimeter does not read anything, then the thermostat is defective and must be replaced. Cooker Spare Parts recommends that you replace the thermostat with a new one of the same type as the one you have. The thermostats are available for purchase at a reasonable cost on the internet or in the kitchen store. Bake Element The bake element is crucial to the functioning of your oven. It generates the heat needed to cook food. It's a simple component that transforms electricity into high temperatures for baking, roasting, and broiling. Electric ovens and ranges often contain heating elements, which can be exposed or hidden under the floor. Generally, oven heating elements are constructed of high-resistance materials such as nickel-chromium alloy. They convert electricity into heat through resistance. This heat is then radiated through the oven's interior to attain the desired temperature for cooking different types foods. When you start the oven the heating elements begin to produce heat through the high-voltage current flowing across the metal surface. The element is a ribbon or coil (straight or corrugated) of wire, and when the electric current passes through it, it starts to get hotter. When the element reaches its desired temperature it starts to glow red hot. The baked element is the main source of heat in all oven functions. It's usually located at the lower levels of the oven. Many automatic oven models also use it to clean themselves. You might be noticing that the oven doesn't get hot as fast, or that your food hasn't fully cooked. Plug your multimeter in to its red and black ports. Then, you can press the probes made of metal on one side of the device against each other. Place the other end of the baking element against one terminal and then place your hand on it. If the element feels warm, remove it and test it again. If not, remove it and try again. Broil Element The broil element, which is usually located on the top of your cavity, offers high heat to brown or char food items. The broil setting in your oven is an excellent option for quickly grilling meat or vegetables, crisping them up, reheating lasagna, or making caramel on top of the casserole. Similar to the bake element, the broiler heating element transforms electrical energy into heat by the process of resistance. It consists of an inner core of wires that are wrapped in an insulating expanded perlite material. The inner core is then encased in an outer layer of stainless steel, which protects the wires from direct contact with the oven. The three-layer structure helps reduce the temperature of the broil element, making it more secure and efficient than older styles of elements. You can use any heating element you want to use for baking or broiling in your oven. But, you must select one that matches the wattage of your oven's rating. A different wattage could cause damage to your oven or cause it to overheat. The voltage and current ratings of the new heating elements can be located on the control panel of your oven. This will allow you to check the ratings and wattage of your oven. Examine the resistance of the previous element, and compare it to the wattage rating of the new one. The greater the resistance, the greater the power that an oven element draws from. Replace the broiler element as soon as possible If it's not functioning or if it's acting up. Your oven must function properly to be able to cook your favorite foods. However, if your oven isn't functioning in any way or only intermittently, the problem could be in a different area of your oven. Light Bulb and Assembly The light lets you keep an eye on the food that is cooking without opening the door and let the heat escape. The light will also let you know when the casserole is finished. It's not unusual for the light bulb to fail. It can be quite frustrating, but you can fix it yourself. Check that the breaker isn't tripped and that the connector has three prongs. First, remove the light bulb that was in use and find the new one. You may need to search the internet to find the correct replacement bulb that matches your oven's wattage. Some ovens utilize standard appliances with bulbs that are 40 watts in power some require an halogen lamp that can reach 50 watts. Be aware that the oil from your hands can cause damage to the halogen bulb, so it is recommended to use cotton gloves when handling it. Remove the glass casing from the bulb prior to replacing it. It is important to do this slowly so that you don't damage it. You'll have to remove the air from the bulb and replace it with an appropriate mixture. This will extend the lifespan for the filament. If your bulb keeps being replaced, it may be a larger electrical issue that must be dealt with by an expert. Double check that you are using the correct oven bulb and look over your Use and Care Guide to find more help in troubleshooting. And remember that it's always an excellent idea to unplug your oven and disconnect the power from the outlet prior to you begin any repair. This will keep you from suffering an electric shock. Vent Tube The vent tube is a crucial oven component because it allows for a small amount of airflow to be created within the cavity. This allows the bake element to circulate heat around the oven, ensuring that the temperature is evenly dispersed. It also allows vapors from the oven to escape, as well as allows smoke to be drawn away from the cooking surface. It is crucial to ensure the proper operation of any gas or electric oven. Oven vent tubes may become blocked by various reasons. Accidental spills or splatters while cooking can leave sticky residues on oven vents, which can draw dust and other debris which can lead to obstructions or blockages in the course of time. Oil and grease can also become airborne and settle on vents. Other environmental factors, like kitchen renovations and construction work, can introduce dust or other pollutants into the vents, resulting in blockages or clogs. Based on the model of the oven, the vent tube can include a spreader and a fill tip 12, and an a bottle guide 20 that are incorporated into the pipe 32. For example the bottle guide 20 could have a tapered outer surface that is complemented by the tapered inner surface of the spreader 46, allowing the vent tube to be easily placed into various sizes and designs of bottle necks. A blocked vent tube could cause a decrease in pressure inside the enclosure, which could cause a downdraft that pulls exhaust backwards 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, consult a professional for help. They will identify the issue and provide recommendations for removing or cleaning the vent.