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How to Repair Common Oven Parts Ovens are a common kitchen appliance used to cook food. The heat generated by the oven sterilizes food and kills most of the micro-organisms present in them. A precise oven thermometer is an essential for bakers of all kinds. Understanding how your oven works will help improve your baking and roasting abilities and eliminate those irritated hot spots that can cause havoc with cakes, cookies and other baked items. best oven is an essential component of your oven. It assists in ensuring that the temperature of food matches the temperature you have set on the control panel. It could be a problem, just like 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 a small strip made of two different metals connected. When heated, the different metals expand and flex at different rates, creating or breaking an electrical circuit. When the metal in your thermostat reaches the temperature you have set on the control panel it will shut off the heating element's power. When the oven cools down the bimetallic strip expands to re-establish the circuit before turning on the heating element. This cycle is constantly repeated to ensure that the temperature remains constant within your oven. The oven must be disconnected and all screws removed to identify a thermostat problem. If you have a multimeter (which is a device that analyzes the electrical current) set it to the ohms level and then test the thermostat. If the multimeter displays zero or close to zero it means that the thermostat is working correctly and does not need to be changed. If the multimeter fails to read anything it means that the thermostat is defective. It must be replaced. Cooker Spare Parts recommends that you replace the thermostat with a new one of the same type as the one you have. The thermostats are sold at a reasonable cost online or at a kitchen goods shop. Bake Element Ovens are not complete without the bake element which is the element that heats up to help your oven cook food. It's a small component that transforms electricity into the high temperatures required for baking, roasting, and broiling. Electric ovens and ranges often include heating elements that are either visible or hidden beneath the floor. In general oven heating elements comprise of high-resistance materials like nickel-chromium. They work by converting electrical energy into heat by the process of resistance, which then radiates throughout the oven interior to raise the temperature to the desired level to cook various types of food items. When you start your oven the heating element starts to produce heat through the high-voltage electricity moving across its metal surface. When electric current is flowing 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 primary source of heat in all oven functions. It's usually found at the bottom of the oven and is used for the self-cleaning feature in many ovens with automatic cleaning. When it starts to burn out, you might find that your oven isn't able to 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 red and black ports, then touch the metal probes against each other on the opposite side of your element. Set the other end of the probe against one of its terminals and place your hand on it to determine whether the element is warm to the touch. If it's not, take off the element and test again. Broil Element The broil element, which is typically located at the top of your cavity, allows high-temperature temperatures to brown or char the food. The broil setting of your oven is a great option for quickly searing meat, crisping vegetables, reheating lasagna, or making caramel on top of a casserole. The broiler heating element is comparable to the bake element in that it converts electrical energy through resistance into heat. It consists of an inner core of metal wires wrapped in insulating perlite material. The inner core is wrapped in an outer layer of stainless steel, which protects the wires from direct contact with the oven. The three-layer design helps to reduce the temperature of the broil element, making it more secure than older designs. You can use any heating element you want to use for baking or broiling in your oven. However, it is important to choose one that is compatible with your oven's rated wattage. Utilizing a different wattage may cause damage to your oven or cause it to overheat. You can check the wattage of your oven and the rating of the new heating element by examining their voltage and current ratings on the oven's control panel. You should also check the resistance of your old element and compare it with the power of the new broiler heating element. The higher the resistance, the more the power that an oven element draws from. Replace your broiler element immediately if it is not working or is acting up. It is crucial that your oven functions properly to cook all of your favorite foods. However, if your oven is not working at all, or is only working intermittently, the problem could lie with another part of your oven. Light Bulb and Assembly The oven light helps keep an eye on your food while it cooks without having to open the door and let the heat escape. The light also alerts you when your casserole is ready. It's not uncommon for the bulb to die. This can be frustrating but it's an easy fix you can accomplish yourself. Before you begin, be sure that the breaker hasn't been tripped and that the three-prong connector is intact. Remove the old bulb and then look for the new bulb. You may need to search online for a replacement bulb that matches the wattage and the type of oven you have. Some appliances use standard 40-watt bulbs some require halogen bulbs up to 50 watts. Be aware that the oils from your hands can cause damage to the halogen bulb, so it is recommended to use cotton gloves when handling it. Before putting the new bulb in, you should first take it out of its glass casing. 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 ensure a longer lifespan of the filament. If your bulb keeps going out it could be due to an electrical issue that requires the assistance of a professional. Double check that you are using the correct oven bulb and look over your Use and Care Guide to get more troubleshooting advice. Remember to unplug the oven and turn off the power prior to beginning any repairs. This will help prevent being shocked by electricity. Vent Tube The vent tube is an essential oven component because it allows for a small amount of airflow to flow within the cavity. This allows the bake element to circulate heat around the oven and ensures the temperature is evenly dispersed. It also allows the vapors to be released from the oven, and smoke to be drawn from the cooking surface. It is vital for the proper functioning of any gas or electric oven. Oven vent tubes may become clogged by a variety of factors. Accidental spills and splatters during cooking can leave sticky residues on oven vents, which attract dust and other debris that can eventually cause clogs or blockages over time. Grease and oil particles can become airborne and settle on the vents, as well. Other environmental factors, such as kitchen construction and renovations, can introduce dust or other pollutants into the vents, resulting in blockages or clogs. Based on the type of the oven, the vent tube can include a spreader 46, the fill tip 12, and the bottle guide 20 which are integrated into the pipe 32. The bottle guide 20 can be fitted with a tapered outer edge that complements the tapered inner edge of the spreader to allow the vent tubes to slide easily into different sizes and shapes bottle necks. A blocked vent tube may cause a decrease in pressure inside the enclosure, which can cause an exhaust downdraft, which pulls the exhaust forward and down the vent, damaging the oven's components. If you suspect that the vent tube in your oven is clogged or blocked, call a professional for help. They will identify the problem and offer suggestions on how to clear or clean the vent.