How to Repair Common Oven Parts The oven is a kitchen appliance that is typically used to cook food. The heat generated by the oven sterilizes food items and kills most of the micro-organisms in them. An accurate oven thermometer is essential for bakers of all kinds. Knowing how your oven functions will help improve your baking cooking, roasting and cooking skills. It will also help eliminate the annoying hot spots that can cause damage to cakes, cookies and baked items. Thermostat The thermostat is one of the most crucial components of your oven, helping make sure that the temperature of your food matches the temperature you've set on your control panel. Unfortunately, like any other electro mechanical switch or sensor, it can have issues that cause the oven to over heat or under heat, or not be able to maintain the temperature at the level you've set. The oven thermostat is tiny strips of two different metals that are joined. When exposed to heat the various metals expand and contract at different rates, forming or breaking an electrical circuit. When the thermostat's metal reaches the temperature you've set on your control panel it shuts off the heating element's power. As the oven cools, the bimetallic strip contracts to re-establish the circuit before turning on the heating element. This process is repeated repeatedly to ensure a constant oven temperature. You'll need the oven disconnected and all screws removed in order to determine a thermostat problem. 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 operating properly and doesn't need to be replaced. If the multimeter does not show anything, the thermostat is faulty. It is time to get it replaced. Cooker Spare Parts suggests that you replace your thermostat with a similar model as the one you have. They can be purchased through the internet or at an appliance store and are available at a reasonable price. Bake Element Ovens can't be complete without the bake element which is the element that heats up to help your oven cook food. It's a small element that converts electricity into the high temperatures required for baking, roasting, and broiling. Heating elements are typically found in electric ovens and ranges and can be either uncovered or hidden under the oven's floor. In general, oven heating elements consist of high-resistance elements like nickel-chromium. They work by converting electricity into heat through resistance. This heat then radiates through the interior of the oven to achieve the temperature required to cook different kinds of food. When you turn on your oven the heating element gets to generate heat through the high-voltage electricity flowing across its metal surface. When electricity flows through it, the element heats up. 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 in the bottom of the oven, and is used to perform the self-cleaning function in many automatic oven models. When it starts to burn out, you might be noticing that your oven doesn't preheat as quickly or that your food is not cooked through completely. Plug your multimeter in to its red and black ports. Then, press the metal probes on one side of the element against each other. The other end of the element on one terminal and then place your hand on it. If the element feels warm, remove it and try testing it again. If it's not, take off the element and start testing again. Broil Element The broil element is usually situated in the top of the oven cavity and provides high heat like grills to cook or brown food. The broil setting in your oven is an excellent option for quickly grilling meat, crisping vegetables, 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 is made up of an internal core of wires that are wrapped in insulating perlite material. The inside of the element is then covered with an outer layer of stainless steel to shield the wires from direct contact with the oven. The three-layer design can help reduce the temperature of the broil element, making it safer than the older models. While you are able to use any baking or broiling heating element in your oven, it is important to choose one that matches the rated wattage of your oven. A different wattage could cause damage to your oven or cause it to overheat. The current and voltage ratings of the new heating elements can be located on the control panel of your oven. This will allow you to examine the ratings and wattage of your oven. Examine the resistance of your old element, and then compare it with the wattage rating of the new one. The greater the resistance of an oven element, the more power it draws. Replace your broiler element immediately in the event that it isn't functioning or if it's acting up. It is essential that your oven functions properly so that you can cook all your favorite food items. If your oven doesn't work in any way, or just intermittently then the problem may be in a different part. Light Bulb and Assembly The light allows you to monitor your food while it cooks without opening the door and let heat escape. The light will also let you know when the casserole is done. But it's not uncommon for the bulb to go out. It can be a hassle however, it's an simple fix that you can accomplish yourself. Before you start, make sure that the breaker hasn't been tripped and that the three-prong connector is intact. Remove the old bulb and then locate the new one. It is possible to search the internet for a replacement that is compatible with the wattage and model of your oven. Some ovens use standard 40-watt appliance bulbs some require a halogen bulb up to 50 watts. You should consider using cotton gloves to shield halogen bulbs from the damage caused by oil. Remove the glass casing from the bulb prior to replacing it. You should do this slowly to avoid breaking it. Then, you'll need to remove the air from the bulb and fill it up with an amalgamation of gases. This will extend the filament life. If your bulb is always going out it could be an electrical problem that requires a professional to fix. Make sure that you're using a correct bulb for your oven, and look over your Use and Care Guide for additional troubleshooting suggestions. Make sure to unplug the oven and shut off the power before beginning any repairs. This will help prevent getting an electric shock. Vent Tube The vent tube is a crucial oven element because it allows for a small amount of airflow inside the cavity. This allows the bake element to circulate heat throughout the oven, ensuring that the temperature is evenly dispersed. It also allows vapors to escape from the oven and smoke to be drained from the cooking surface. It is essential for 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 residues on oven vents. They can attract dust, debris and other contaminants that can cause clogs in the course of time. Grease and oil can also become airborne and settle around vents. Other environmental factors, like construction and kitchen renovations can cause dust to enter the vents. This can cause clogs. Based on the oven model the vent tube could comprise the bottle guide 20, spreader 46 and fill tip 12 that are constructed with the pipe 32. For example, the bottle guide 20 may have a tapered outer surface that is complemented by the tapered inside of the spreader 46. This allows the vent tube to be smoothly fitted into various sizes and forms of bottle necks. best hob clogged or blocked vent tube can result in an increase in pressure within the enclosing structure. This can create a downdraft situation that pushes exhaust down the vent and backwards through the oven's burners, causing damage to the oven's components. If you believe that the vent tube in your oven is clogged or blocked, contact a professional for help. They will identify the problem and provide suggestions on how to clean or clean the vent.
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