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How to Repair Common Oven Parts Oven is a common kitchen appliance used to cook food. The heat produced by the oven sterilizes food items and kills the majority of micro-organisms that are present in them. All bakers require an accurate oven thermometer. Understanding how your oven functions will improve your baking cooking, roasting and cooking skills. It can also help you avoid those hot spots that can cause damage to cakes, cookies and baked items. Thermostat The thermostat is an essential element of your oven. It helps to ensure that the temperature of food corresponds to the temperature you have set on the control panel. Unfortunately, like any other electronic mechanical switch or sensor it may have issues that cause the oven to over heat or under heat, or not be able to keep the temperature at the level you've set. The oven thermostat is essentially an extremely small piece of different metals joined. When heated, the metals expand or bend at different rates. This creates an electrical circuit. When the thermostat's metal is at the temperature you've set on your control panel, it turns off the heating element's power. As the oven cools down the bimetallic strip contract in a way, reestablishing the circuit and activating the heating element. This cycle is repeated continuously to ensure that the oven remains at a constant temperature. To diagnose a problem with the thermostat you'll have to remove the oven and verify that all screws that hold it in place have been removed. Set your multimeter to the Ohms setting, and then test the thermostat. If the multimeter reads 0 or very close to it the thermostat is working correctly and doesn't require to be replaced. If the multimeter fails to detect anything, the thermostat is faulty. It must be replaced. Cooker Spare Parts recommends that you replace the thermostat with a fresh one of the same kind that your old one. They are available online or at an appliance store and can be purchased at a reasonable price. Bake Element The bake element is crucial for the proper operation of your oven. It provides heat that allows it to cook food items. It's a small component that turns electricity into the high temperatures needed for baking, roasting, and broiling. Electric ovens and ranges often contain heating elements, which can be exposed or hidden under the floor. In general oven heating elements comprise of high-resistance metals such as nickel-chromium. best ovens and hobs convert electrical energy into heat via the process of resistance, which radiates outwards into the oven's interior, causing it to increase the temperature to the desired degree to cook different kinds of foods. When you turn on your oven, the heating element begins to generate heat from the high-voltage electrical energy flowing across its metal surface. The element is a ribbon or coil (straight or corrugated) of wire. When the electric current flows through it, it starts to get hotter. When the element reaches its temperature it begins to glow red hot. The baked element is the main source of heat used in most oven functions. It's usually located at the bottom of the oven, and is used to clean the oven in many automatic oven models. When it starts to smoke you may find that your oven isn't able to preheat as quickly or that your food isn't fully cooked. Plug your multimeter in to its black and red ports. Then, you can press the metal probes on one end of the element to each other. Place the other end of the element against one terminal and place your hand on it. If the element feels warm, take it off it and try testing it again. If not, remove it and try again. Broil Element The broil element is typically located in the upper part of the oven's cavity and produces the same high temperature as a grill to roast or grill food items. The oven's broil setting is a great way to quickly grill meat crisp vegetables, heat lasagna or caramelize the top of the casserole. Similar to the bake element the broiler heating element transforms electrical energy into heat through the process of resistance. It is comprised of an inner core comprised of metal wires, which are wrapped in an insulating and expanded product known as perlite. The inner core of the element is covered with a stainless steel outer layer to protect the wires against direct contact with the oven. The three-layer design helps to lower the temperature of the broil element, making it more secure than older designs. You can use any heating element for baking or broiling in your oven. However, you should choose one that is in line with your oven's rated wattage. Utilizing a different wattage may damage 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 ratings and wattage of your oven. Verify the resistance of the previous element, and then compare it with the wattage rating of the new one. The higher the resistance of an oven element, the more power it uses. If the heating element in your broiler is acting up or doesn't work at all, you must replace it immediately. Your oven needs to function properly for you to to cook your favorite meals. If, however, your oven isn't working in any way or only intermittently, the issue could lie with another part of your oven. Light Bulb and Assembly The light lets you monitor your food as it cooks, without opening the door and let the heat escape. The light also alerts you when your casserole is ready. It's not unusual for the light bulb to fail. It can be a hassle however, it's an easy fix you can accomplish yourself. Check that the breaker is not tripped, and that the connector has three prongs. First, take out the old light bulb and find the new one. It is possible to look online to find the correct replacement bulb that matches the wattage of your oven. Some ovens use standard 40-watt appliance bulbs and others require a halogen bulb up to 50 watts. Be aware that the oil from your hands can cause damage to the halogen bulb, so you should use cotton gloves when handling it. Remove the glass casing from the bulb before replacing it. It's important to do this slowly so that you don't damage 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 constantly being replaced, it could be a wider electrical issue that must be addressed by a professional. Make sure you double-check that you're using the correct bulb for your oven and check out your Use and Care Guide for more troubleshooting advice. Remember that it's an excellent idea to unplug your oven and disconnect the power from the outlet prior to you begin any repair. This will help protect you from electric shock. Vent Tube The vent tube is a crucial oven element because it allows for a tiny amount of airflow to be created within the cavity. This allows the bake element to circulate heat around the oven and ensures that the temperature is evenly dispersed. It also allows the vapors be released from the oven, and smoke to be drawn from the cooking surface. It is essential for proper operation of any electric or gas oven. Oven vent tubes can become blocked or blocked due to several reasons. Accidental spills or splatters could leave sticky remnants in oven vents. They may attract debris, dust and other contaminants that could cause clogs over time. Grease and oil particles may become airborne and settle around the vents, too. Other environmental factors, such as kitchen renovations and construction work could introduce dust and other contaminants into the vents, which can cause obstructions or clogs. Depending on the oven model, the vent tube may include the bottle guide 20 and spreader 46, as well as fill tip 12 that are integrally formed with the pipe 32. The bottle guide 20 could be fitted with a tapered outer edge that is complemented by the tapered inner edge of the spreader to allow the vent tubes to be placed effortlessly into various sizes and shapes of bottle necks. A blocked vent tube may cause a loss in pressure inside the enclosure, which can cause an updraft that pulls exhaust backwards and then down the vent, causing damage to the oven's components. Consult a professional if you think your vent pipe might be blocked or clogged. They will determine the cause and provide suggestions on how to clear or clean the vent.