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How to Repair Common Oven Parts The oven is a common kitchen appliance used to cook food. The heat from the oven sterilizes food items and kills most of the micro-organisms present in them. Every baker needs an accurate oven thermometer. Knowing how your oven functions will improve your baking and roasting skills, and eliminate those annoying hot spots that cause havoc with cookies, cakes and other baked products. Thermostat The thermostat is an important component of your oven. It is used to ensure that the temperature of food matches the temperature that you set on the control panel. It can be problematic as with any other sensor or switch that is electro-mechanical. The oven can overheat or underheat, or not maintain the temperature you have set. The oven thermostat is tiny strips of two different metals that are joined. When heated the different metals expand and flex at different rates, creating or breaking 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. When the oven cools down the bimetallic strip expands to re-establish the circuit before activating the heating element. This process continues to ensure that the temperature remains constant in your oven. The oven must be disconnected and all screws removed in order to determine the problem with the thermostat. Set your multimeter to the Ohms setting and then test the thermostat. If the multimeter reads zero or very close to it then the thermostat is operating properly and doesn't need to be replaced. If the multimeter doesn't read anything at all, then the thermostat is not working properly and needs to be replaced. Cooker Spare Parts recommends that you replace the thermostat with a brand new one that is the same model that your old one. The thermostats are available for purchase at a reasonable cost on the internet or in the kitchen store. Bake Element The bake element is vital to the operation of your oven. It generates the heat needed to cook food. It's a small element that converts electricity into the high temperatures needed for baking, roasting and broiling. Electric ovens and ranges usually include heating elements that can be either exposed or hidden beneath the floor. In general oven heating elements are made up of high-resistance elements like nickel-chromium. They work by converting electrical energy into heat using resistance. The heat then radiates through the oven's interior to attain the temperature required to cook various types of food. When you switch on the oven the heating elements start to generate heat by the high-voltage current that flows across the metal surface. When electric current is flowing through it, the element heats up. When the element reaches the temperature it is intended to, it starts to glow red hot. best hobs uk is the main source of heat in all oven functions. It's usually located at the bottom of the oven. Many ovens with automatic heating also use it to clean themselves. You might notice that the oven doesn't heat up as quickly or that your food hasn't been fully cooked. To check for a working oven baking element connect your multimeter to its black and red ports, and then place the probes made of metal against each other on one side of your element. The other end of the element on one terminal and place your hand on it. If the element feels warm, remove it and test it again. If it's not, take off the element and start testing again. Broil Element The broil element is usually located at the top of the oven's cavity and produces high-temperature heat similar to a grill to cook or brown food. The broil setting of your oven is a great option for quickly searing meat, crisping vegetables, reheating lasagna or caramelizing the top of a 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 metal wires wrapped in insulating expanded 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 structure helps lower the broil element's temperature, making it safer and more efficient than older types of elements. You can use any heating element to bake or broiling in your oven. But, you must select one that matches the wattage that your oven is rated for. Using a different wattage can damage your oven or cause it to overheat. The voltage and current ratings of the new heating elements can be found on the control panel of your oven. This allows you to determine the wattage and rating of your oven. Verify the resistance of the old element, and then compare it to the wattage ratings of the new element. The higher the resistance, the greater energy an oven element consumes. Replace your broiler element immediately in the event that it isn't working or if it is acting up. It's important for your oven to function properly to cook all of your favorite foods. If your oven doesn't function at all, or only intermittently, the issue may be with another part. Light Bulb and Assembly The oven light helps you keep an eye on the food as it cooks, without having to open the door to let heat escape. The light also lets you know when your casserole is ready. It's not uncommon for the bulb to fail. This can be very frustrating but it's an easy repair that you can do yourself. Before you start, make sure that the breaker isn't tripped and that the three-prong connector is intact. Remove the old bulb, and then look for the new bulb. It is possible to search online for a replacement that matches the wattage and the type of oven you have. Some ovens have normal appliance bulbs that run at 40 watts and others require an halogen lamp that can reach 50 watts. Consider using cotton gloves to shield the halogen bulbs from damage caused by oil. Remove the glass casing of the bulb before replacing it. You should do slowly to avoid breaking it. You'll then need to remove the air from the bulb and replace it with the mixture. This will ensure a longer lifespan for the filament. If your bulb keeps going out, there could be a bigger electrical issue that should be handled by a professional. Double check that you are using the correct oven bulb and consult your Use and Care Guide for additional troubleshooting tips. Remember that it's recommended to unplug your oven and disconnect it from the outlet before you begin any repair. This will protect your from electrical shock. Vent Tube The vent tube is an essential oven part that allows for an airflow within the cavity. This allows the bake element to circulate heat throughout the oven, making sure that the temperature is evenly distributed. It also allows the vapors to be released from the oven, and smoke to be drawn from the cooking surface. It is crucial for the proper operation of any electric or gas oven. Vents in ovens can get blocked due to many factors. Accidental spills or splatters while cooking can leave sticky residues on the oven vents, which draw dust and other debris that could eventually cause clogs or blockages over time. Grease and oil can also become airborne and settle around vents. Other environmental factors, such as kitchen renovations and construction work can introduce dust or other pollutants into the vents, resulting in blockages or clogs. Based on the oven model the vent tube may comprise an a bottle guide 20 or spreader 46 as well as a fill tip 12 that are constructed with the pipe 32. The bottle guide 20 can be fitted with a tapered outer edge that matches the tapered inner edge of the spreader to allow the vent tubes to be placed smoothly into different sizes and shapes of bottle necks. A blocked or clogged vent tube can result in an increase in pressure within the enclosing structure. This could result in a downdraft which pulls exhaust down vent and backwards towards the oven's burners, which can cause damage to the oven components. If you suspect that your vent tube is blocked or blocked, consult a professional for help. They will determine the cause and offer suggestions on how to clean or clean the vent.