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How to Repair Common Oven Parts The oven is a kitchen appliance that is typically used to cook food. The heat from the oven sterilizes food and kills the majority of microorganisms. All bakers need 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 part of your oven. It helps to ensure that the temperature of food is in line with the temperature that you set on the control panel. It could be a problem as is any other switch or sensor that is electro-mechanical. The oven could overheat or underheat, or simply not maintain the temperature you have set. The oven thermostat is essentially tiny strips of two different metals that are bonded. When heated by the oven, the metals expand and bend at different rates. This creates an electrical circuit. When the thermostat's metal attains the temperature you've set on your control panel, it shuts off the heating element's power. As the oven cools the bimetallic strips expand in a circuit, re-establishing it and turning on heating element. This process is repeated repeatedly to ensure a constant oven temperature. To diagnose a problem with the thermostat you'll need to unplug the oven and ensure that all screws holding it in place have been removed. If you have a multimeter (which is a tool that detects the electrical current) set it to the ohms setting, and then test the thermostat. If best hob shows zero or close to zero the thermostat is operating properly and doesn't need to be changed. If the multimeter does not detect anything it means that the thermostat is defective. 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 online or at the kitchen store, and can be purchased at a reasonable cost. Bake Element Ovens can't be complete without the bake element, which provides heat to make your oven cook food. It's an easy component that transforms electricity into high temperatures for baking, roasting, and broiling. Electric ovens and ranges typically have heating elements, which can be exposed or hidden under the floor. Generally, oven heating elements are made from high-resistance components like nickel-chromium alloy. They work by converting electricity into heat through resistance. This heat is then radiated through the interior of the oven to attain the desired temperature to cook different kinds of food. When you turn on your oven, the heating element begins to work by generating heat through the high-voltage electricity that flows across its metallic surface. When electric current is flowing through it the element gets heated up. When the element reaches its temperature, it starts to shine red hot. The baked element is the main source of heat for most oven functions. It is typically located at the lower levels of the oven. Many automatic oven models also have it to clean themselves. You might observe that the oven does not warm up as quickly or that your food isn't cooked to perfection. Connect your multimeter to its red and black ports. Then, touch the probes made of steel on one side of the device against each other. Place the other end of the element on one terminal and place your hand on it. If the element feels warm, take it off it and test it again. If not, take it off the element and try again. Broil Element The broil element is typically situated in the upper part of the oven's cavity and produces the same high temperature as a grill to cook or brown food items. The oven's broil setting is a great way to quickly cook meat or crisp vegetables, to heat up lasagna or caramelize the top of a casserole. The broiler heating element is similar to the bake element in that it converts electrical energy via resistance into heat. It is made up of an internal core of wires made of metal wrapped in insulating perlite material. The inner core of the element is covered with an outer layer of stainless steel to protect the wires against direct contact with the oven. The three-layer design helps reduce 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. But, you must choose one that is in line with the wattage of your oven's rating. A different wattage could harm your oven or cause it to overheat. The current and voltage ratings of the latest heating elements can be found on the control panel of your oven. This allows you to determine the wattage and rating of your oven. You should also check the resistance of your old element and compare it with the wattage of your new broiler heating element. The greater the resistance of an oven element the more power it uses. Replace your broiler element immediately if it is not working or if it is acting up. Your oven must function properly for you to to cook your favourite meals. If your oven does not function at all, or only intermittently, then the issue could be a problem with a different component. Light Bulb and Assembly The light allows you to monitor the food that is cooking, without opening the door and let heat escape. The light will also notify you when the casserole is finished. It's not unusual for the light bulb to fail. 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 remains intact. Remove the old bulb and then find the new one. You may have to search online for a replacement bulb that matches the wattage and type of oven you have. Some use standard 40-watt appliance bulbs and others require a halogen bulb that is up to 50 watts. Consider using cotton gloves to protect the halogen bulbs from damage caused by oil. Before you put the new bulb in, you should first take it out of its glass casing. It's crucial to do this slowly so that you don't fracture it. Then, you'll need to remove the air from the bulb and fill it up with a mixture of gases. This will ensure a longer lifespan for the filament. If your bulb is always blinking it could be due to an electrical issue that needs a professional to fix. Double check that you are using the correct oven bulb and look over your Use and Care Guide to get additional troubleshooting tips. Remember to unplug the oven and shut off the power before beginning any repairs. This will prevent you from being shocked by electricity. Vent Tube The vent tube is an important oven element because it allows a small amount of airflow to be created inside the cavity. This permits the bake element to circulate heat throughout the oven, making sure that the temperature is distributed evenly. It also allows vapors to escape from the oven, and smoke to be drained from the cooking surface. It is necessary to ensure the proper operation of any electric or gas oven. Vents for ovens can become clogged by a variety of factors. Accidental spills and splatters from cooking can leave sticky residues on the oven vents, which draw dust and other debris that could eventually cause clogs or blockages in the course of time. Grease and oil may also become airborne and settle on vents. Other environmental factors, like kitchen and construction projects can cause dust to enter the vents. This can cause clogs. Based on the type of the oven the vent tube could include a spreader and a fill tip 12, and the bottle guide 20 which are incorporated into the pipe 32. For instance the bottle guide 20 could have a tapered outer layer that compliments the complementarily tapered inside of the spreader 46 to allow the vent tube to be effortlessly fitted into various sizes and designs of bottle necks. A clogged or blocked vent tube can result in the loss of pressure inside the enclosing structure, which can result in a downdraft that pushes exhaust down the vent and backwards towards the oven burners, causing damage to the oven components. Consult a professional if think your vent pipe might be blocked or clogged. They will identify the problem and offer suggestions on how to clear or clean the vent.