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How to Repair Common Oven Parts Oven is a kitchen appliance that is commonly used to cook food. The heat from the oven sterilizes foods and kills the majority of micro-organisms in them. A reliable oven thermometer is an essential for all bakers. Understanding how your oven functions will help improve your baking cooking, roasting and cooking skills. It will also eliminate the annoying hot spots that can ruin cakes, cookies and baked goods. Thermostat The thermostat is one of the most important parts of your oven, helping to make sure that the temperature of your food is exactly what you've set in your control panel. As with any electronic mechanical switch or sensor, it can sometimes have problems that cause the oven to over or under heat, or simply not be able to keep the temperature at the level you've set. The oven thermostat is basically a small strip made of two different metals that are bonded together. When heated, the different metals expand and flex at different rates, creating or breaking an electrical circuit. When the metal in the thermostat attains the temperature you've set on your control panel it turns off the power to the heating element. As the oven cools the bimetallic strip contract, re-establishing the circuit and turning on the heating element. This cycle is constantly repeated to ensure a constant temperature in your oven. To diagnose a problem with the thermostat you'll need to disconnect the oven and make sure that all screws holding it in place have been removed. If you own a multimeter (which is a tool that analyzes the electrical current), set it to the ohms setting and then test the thermostat. If the multimeter reads zero 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, the thermostat is faulty. It is time to get it replaced. Cooker Spare Parts recommends that you replace the thermostat with a fresh one of the same kind as the one you have. They are available on the internet or in an appliance store and can be bought at a reasonable cost. 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 basic element that converts electricity into the high temperatures required for baking, roasting, and broiling. Heating elements are commonly found in electric ovens and ranges and can be either covered or concealed under the oven's floor. The majority of oven heating elements are constructed of high-resistance materials such as nickel-chromium alloy. They work by converting electricity into heat through resistance. This heat is then radiated through the interior of the oven to reach the desired temperature for cooking different types foods. When you start your oven the heating element starts to produce heat through the high-voltage electricity flowing across its metal surface. When the electric current runs through it the element gets heated up. When the element reaches its desired temperature, it starts to shine red hot. The baked element is the main source of heat used in most oven functions. It's usually located in the bottom of the oven, and is used to perform the self-cleaning function in many ovens with automatic cleaning. You might observe that the oven doesn't get hot as fast or that your food isn't cooked to perfection. To verify that you have a working 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 your element. The other end of the element on one terminal and then place your hand on it. If the element feels warm, take it off it and test it again. If not, remove it and try again. Broil Best ovens UK , which is usually found at the top of your cavity provides high heat to cook or char the food. The oven's broil setting is a great way to quickly sear meat or crisp vegetables, to heat up lasagna, or caramelize the topping of a casserole. Similar to the bake element, the broiler heating element transforms electrical energy into heat via the process of resistance. It is made up of an inner core consisting of metal wires, which are wrapped in an insulating expanded product called perlite. The inner core is encased in an outer layer of stainless steel, which protects the wires from direct contact with the oven. The three-layer structure helps lower the broil element's temperature, making it safer and more efficient than older types of elements. While you can use any baking or broiling heating element in your oven, make sure to choose one that is in line with the rated wattage of your oven. A different wattage can damage your oven, or cause it overheat. You can verify the power of your oven and the rating of the new heating element by looking at their voltage and current ratings on the control panel of your oven. You should also test the resistance of your old element and compare it with the power output of your new broiler heating element. The greater the resistance of an oven element, the more power it uses. Replace the element in your broiler immediately in the event that it isn't working or is acting up. Your oven must function properly to be able to cook your favourite meals. If your oven doesn't work at all, or only intermittently then the problem may be with another part. 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 lets you know when the casserole is ready. best oven 's not uncommon for the light to fail. It can be a hassle, but it's a relatively simple fix that you can accomplish yourself. Make sure that the breaker is not tripped, and that the connector has three prongs. Remove the old bulb and then locate the new one. You may have to look online for the right replacement bulb that matches the wattage of your oven. Some appliances use standard 40-watt bulbs, while others require a halogen bulb that is up to 50 watts. Consider using cotton gloves to shield the bulbs from the damage caused by oil. Remove the glass casing of the bulb prior to replacing it. It is important to do this slowly so that you don't break it. After that, you'll need to evacuate the air inside the bulb and fill it with an amalgamation of gases. This will prolong the lifespan for the filament. If your bulb is always running out it could be due to an electrical issue that needs an expert to fix it. Make sure that you're using a correct bulb for your oven and look over your Use and Care Guide for more troubleshooting advice. Also, remember that it's recommended to unplug your oven and disconnect it from the outlet prior to you start any repair. This will help protect your from electrical shock. Vent Tube The vent tube is a vital oven component that permits an airflow within the cavity. This allows the bake element to circulate heat around the oven and ensures the temperature is evenly distributed. It also allows the vapors to escape from the oven and smoke to be drained from the cooking surface. It is vital for the proper operation of any electric or gas oven. Oven vent tubes may become blocked due to many factors. Accidental spills or splatters can leave sticky remnants in oven vents. These can attract dust, debris and other contaminants that could cause obstructions in the course of time. Grease and oil can also become airborne and settle on vents. Other environmental factors, like construction and kitchen renovations can create dust in the vents. This can lead to clogs. Based on the oven model the vent tube may include a bottle guide 20 or spreader 46 as well as a fill tip 12 that are integrally formed with the pipe 32. The bottle guide 20 may have a tapered edge that matches the tapered inner edge of the spreader to allow the vent tubes to slide easily into different sizes and shapes of bottle necks. A blocked vent tube may cause a decrease in pressure inside the enclosure, which can lead to a downdraft that pulls exhaust backwards and down the vent, causing damage to oven's components. Contact a professional if you think your vent pipe could be blocked or clogged. They will determine the cause and make recommendations on how to clear or clean the vent.