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How to Repair Common Oven Parts Ovens are a kitchen appliance that is commonly used to cook food. The heat of the oven sterilizes food and kills the majority of microorganisms. An accurate oven thermometer is a necessity for all bakers. Knowing how your oven functions will help improve your baking and roasting skills and eliminate those frustrating hot spots that can cause havoc with cakes, cookies and other baked products. Thermostat The thermostat is among the most important parts of your oven, helping to make sure that the temperature of your food is exactly what you've set in the control panel. It could be a problem, just like any other switch or sensor that is electro-mechanical. The oven may overheat or underheat, or not maintain the temperature you have set. The oven thermostat is tiny strips of two different metals bonded together. When heated, the different metals expand and bend at different rates, creating or breaking an electrical circuit. When the metal in your thermostat reaches the temperature that you set on the control panel it will shut off the power to the heater. As the oven cools the bimetallic strips expand to re-establish the circuit before turning on heating element. This process is repeated over and over to ensure that the temperature remains constant in your oven. It is necessary to disconnect the oven and all screws removed to diagnose the problem with the thermostat. If you own a multimeter (which is a tool that measures electrical current), set it to the ohms setting and then test the thermostat. If the multimeter displays zero or close to zero it means that the thermostat is working correctly and doesn't require to be replaced. If the multimeter does not read anything it means that the thermostat is defective. It must be replaced. Cooker Spare Parts suggests that you replace your thermostat with one of the same type as the old one. They are available online or at the kitchen store, and can be purchased at a reasonable price. Bake Element The bake element is essential to the operation of your oven. It generates the heat needed to cook food. It's a simple component that converts electricity into high temperatures for baking, roasting, and broiling. Heating elements are usually found in electric ovens and ranges and can be either uncovered or hidden under the floor of the oven. In general oven heating elements are made up of high-resistance materials like nickel-chromium. They convert electrical energy into heat via the process of resistance, which radiates outwards into the oven interior to raise the temperature to the desired temperature to cook various types of foods. When you start your oven, the heating element begins to generate heat by the high-voltage electricity moving across its metal surface. When the electric current is flowing through it, the element heats up. The element will turn red hot when it reaches the temperature you want. The baked element is the main source of heat for most oven functions. It's usually located at the bottom of the oven, and is used for the self-cleaning feature in many automatic oven models. If it starts to burn out you may notice that your oven doesn't warm as quickly or your food isn't cooked through completely. To determine if you have a functioning oven baking element, plug your multimeter into its black and red ports, then rub the probes made of steel against each other on one side of the element. Place the other end against one of its terminals, and then place your hands on it to test if the element is warm to the touch. If not, take it off and try again. Broil Element The broil element, typically located at the top of your cavity, provides high heat to cook or char the food. The oven's broil setting is an excellent way to quickly grill meat, crisp vegetables, reheat lasagna or caramelize the topping of a 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 comprised of metal wires, wrapped in an insulating and expanded product known as perlite. The core 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 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. Using a different wattage can cause damage to your oven or cause it to overheat. The voltage and current ratings of the latest heating elements are available on the control panel of your oven. This will allow you to examine the ratings and wattage of your oven. You should also check the resistance of your previous element and compare it with the power of the new broiler heating element. The greater the resistance, the greater the power that an oven element draws from. If your broiler's heating element is not working or functions at all, you must replace it right away. Your oven must function correctly to to cook your favorite meals. If your oven doesn't work in any way, or just intermittently, the issue may be in a different part. Light Bulb and Assembly The oven light lets you keep an eye on the food as it cooks, without opening the door and let the heat escape. The light also informs you when the casserole is ready. But it's not uncommon for the bulb to go out. It can be a hassle, but you can do it yourself. Make sure the breaker isn't tripped and that the connector has three prongs. Take out the old bulb and then look for the new bulb. You may need to search the internet to find the correct replacement bulb that is compatible with the wattage of your oven. Some use standard 40-watt appliance bulbs and others require a halogen bulb that is up to 50 watts. It is recommended to use cotton gloves to shield the bulbs from the damage caused by oil. Before putting the new bulb in place, you should first remove it from its glass casing. It's crucial to take this step slowly to ensure that you don't break it. Then, you'll have to remove the air from the bulb and fill it with an amalgamation of gases. This will ensure a longer filament life. If best ovens and hobs uk keeps running out it could be an electrical problem that requires a professional to fix. Double check that you are using the correct oven bulb and check your Use and Care Guide to find additional troubleshooting tips. Be sure to unplug your oven and shut off the power before you start any repairs. This will protect you from electrical 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 throughout the oven, ensuring that the temperature is evenly distributed. It also allows vapors from the oven to escape and also allows smoke to be drawn away from the cooking surface. It is essential for proper operation of any electric or gas oven. Oven vent tubes can become blocked or clogged due to a variety of factors. Accidental spills or splatters could leave sticky residues on oven vents. They may attract dust, debris and other contaminants that could cause obstructions over time. Oil and grease can also become airborne and build up on vents. Other environmental factors such as construction and kitchen renovations can cause dust to enter the vents. This can cause clogs. Depending on the oven model the vent tube could comprise the bottle guide 20, spreader 46 and fill tip 12 that are formed by the pipe 32. The bottle guide 20 could be fitted with a tapered outer edge that matches the tapered inner edge of the spreader. This allows the vent tubes to be inserted smoothly into different sizes and shapes of bottle necks. A clogged or blocked vent tube can cause an increase in pressure within the enclosing structure. This could result in a downdraft that pulls exhaust down the vent and then backwards over the oven burners, causing damage to the oven components. If you believe that your vent tube is clogged or blocked, contact an expert for assistance. They will determine the cause and make recommendations on how to clean or clean the vent.