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How to Repair Common Oven Parts The oven is a kitchen appliance that is commonly used to cook food. The heat generated by the oven sterilizes food and kills the majority of micro-organisms in them. A precise oven thermometer is essential for all bakers. Knowing how your oven functions can help you improve your baking and roasting skills, and eliminate those annoying hot spots that can cause havoc with cakes, cookies and other baked goods. Thermostat The thermostat is one of the most crucial components of your oven, helping to make sure that the temperature of your food is exactly the temperature you've set on the control panel. Unfortunately, like any other electro mechanical switch or sensor, it can sometimes have problems that result in the oven going over heat or under heat, or simply not be able to keep the temperature at what you've set. The oven thermostat is essentially an extremely small piece of different metals bonded together. When heated, the metals expand or flex at different rates. This creates an electrical circuit. When the metal in the thermostat is at the temperature you've set on your control panel, it shuts off heating element's power. As the oven cools down the bimetallic strip expands in a way, reestablishing the circuit and turning on the heating element. This process continues to ensure a constant temperature in your oven. The oven must be disconnected and all screws removed to identify a thermostat problem. Set your multimeter to the Ohms setting and then test the thermostat. If the multimeter shows zero or close to zero the thermostat is operating correctly and does not need to be changed. If the multimeter does not show 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 thermostat of the same type as the old one. The thermostats are available for purchase at a reasonable cost online or at a kitchen goods shop. Bake Element The bake element is vital to the functioning of your oven. It produces heat that allows it to cook food items. It's a simple element that converts electricity into high temperatures for baking, roasting and broiling. Electric ovens and ranges often contain heating elements, which can be exposed or hidden under the floor. The majority of oven heating elements are made from high-resistance materials like nickel-chromium alloy. They work by converting electrical energy into heat through the process of resistance, which then radiates throughout the oven's interior, causing it to increase the temperature to the desired degree to cook various types of food items. When you start the oven the heating elements start to generate heat by the high-voltage current that flows across the metal surface. When electricity is flowing through it, the element heats up. When the element reaches its temperature it begins to be lit up in red hot. The baked element is the primary source of heat in most oven functions. It's usually located at the in the bottom of the oven. Best ovens UK of ovens that are automated also use it for self-cleaning. When it begins to smoke you may find that your oven isn't able to preheat as quickly or that your food is not cooked through completely. To check for a working oven baking element connect your multimeter to its red and black ports, then touch the probes made of metal against each other on one side of your device. Place the other end against one of its terminals, and place your hand on it to test whether the baking element is warm to the touch. If it's not, take off the element and test again. Broil Element The broil element, usually found at the top of your cavity, offers high heat to cook or char food items. The oven's broil setting can be an excellent way to quickly sear meat or crisp vegetables, to heat up lasagna or caramelize the top of a casserole. Similar to the bake element, the broiler heating element converts electrical energy into heat by the process of resistance. It consists of an inner core of wires that are wrapped in an insulating expanded perlite product. 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 structure helps reduce the temperature of the broil element making it more durable and safer than older types of elements. While you may use any baking or broiling heating element in your oven, make sure to choose one that matches the wattage rating of your oven. A different wattage could cause damage to your oven or cause it to overheat. You can verify the power of your oven and the rating of the new heating element by looking at their current and voltage ratings on the oven's control panel. Examine the resistance of your old element, then compare it to the wattage ratings of the new one. The greater the resistance, the greater power an oven element uses. Replace the element in your broiler immediately in the event that it isn't functioning or if it's acting up. It's important that your oven functions properly to cook your most loved food items. If your oven isn't working at all or only intermittently, the issue could be in a different area of your oven. Light Bulb and Assembly The light allows you to keep an eye on the food that is cooking, without opening the door and letting 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 quite frustrating, but you can fix it yourself. Make sure the breaker is not tripped and that the connector has three prongs. First, take out the old light bulb and locate the new one. You may have to search the internet for the right replacement bulb that matches the wattage of your oven. Some ovens have standard appliances with bulbs of 40 watts, while others need a halogen lamp up to 50 watts. You should consider using cotton gloves to shield halogen bulbs from the damage caused by oil. Remove the glass casing from the bulb prior to replacing it. You should do this slowly to avoid breaking it. You'll then need to remove the air from the bulb and replace it with an appropriate mixture. This will prolong the filament life. If your bulb keeps running out it could be due to an electrical problem that requires the assistance of a professional. Be sure to double check that you're using a correct bulb for your oven, and consult your Use and Care Guide for additional troubleshooting suggestions. Also, 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 protect your from electrical shock. Vent Tube The vent tube is an essential oven component because it allows for a small amount of airflow inside 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 that are released from the oven to escape and allows smoke to be removed from the cooking surface. It is necessary for the proper operation of any electric or gas oven. Vents for ovens can become blocked or blocked due to several reasons. Accidental spills or splatters could leave sticky residues on oven vents. They can attract debris, dust and other contaminants that could cause clogs over time. Grease and oil particles can become airborne and settle on the vents, as well. Other environmental factors such as kitchen and construction work can cause dust to enter the vents. This can cause 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 formed by the pipe 32. The bottle guide 20 may have a tapered edge that is complemented by the tapered inner edge of the spreader, allowing the vent tubes to be inserted easily into different sizes and shapes bottle necks. A blocked vent tube could cause a decrease in pressure within the enclosure, which can cause a downdraft that pulls exhaust forward and down the vent, causing damage to the oven's components. If you suspect that your vent tube is clogged or blocked, consult a professional for help. They will diagnose the problem and provide recommendations for removing or cleaning the vent.