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How to Repair Common Oven Parts The oven is an appliance used in kitchens that is typically used to cook food. The heat of the oven sterilizes food and kills the majority of microorganisms. All bakers need an accurate oven thermometer. Understanding how your oven works will improve your baking and roasting abilities and eliminate those irritated hot spots that wreak havoc with cakes, cookies and other baked items. Thermostat The thermostat is one of the most vital components of your oven, helping make sure that the temperature of your food is exactly what you've set on your control panel. As with any electro mechanical switch or sensor it can have issues that can cause the oven to over heat or under heat, or simply not be able to maintain 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 exposed to heat, the different metals expand and flex at different rates, forming or breaking an electrical circuit. When the thermostat's metal reaches the temperature you've set on your control panel it turns off the heating element's power. As the oven cools the bimetallic strips expand to re-establish the circuit before activating the heating element. This process is repeated repeatedly to ensure a constant oven temperature. You'll need the oven disconnected and all screws removed to identify the issue with the thermostat. If you have a multimeter (which is a tool that detects electrical current), set it to the ohms level and then test the thermostat. If the multimeter shows zero or close to zero, the thermostat is functioning correctly and doesn't require to be changed. If the multimeter isn't reading anything at all, then the thermostat is defective and needs to be replaced. Cooker Spare Parts recommends that you replace the thermostat with a fresh one of the same type as the one you have. The thermostats are sold at a reasonable price online or in the kitchen store. Bake Element The bake element is crucial to the operation of your oven. It produces heat that allows it to cook food. It's a simple element that transforms electricity into high temperatures for baking, roasting and broiling. Electric ovens and ranges usually contain heating elements, which can be either exposed or hidden beneath the floor. Generally, oven heating elements are constructed from high-resistance components like nickel-chromium alloy. They work by converting electrical energy into heat using resistance. The heat then radiates through the oven's interior to attain the desired temperature for cooking different types foods. When you turn on the oven the heating elements start to generate heat by the high-voltage current that flows across the metal's surface. The element is a ribbon or coil (straight or corrugated) of wire, and when the electric current flows through it, it starts to heat up. The element will turn red hot when it reaches the desired temperature. The baked element is the main source of heat in most oven functions. It's usually found in the bottom of the oven, and is used for the self-cleaning feature in a variety of ovens that are automatic. You might notice that your oven doesn't heat up as quickly, or that your food hasn't fully cooked. Plug your multimeter in to its black and red ports. Then, touch the probes made of steel on one end of the element to each other. The other end of the baking element against one terminal and 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 Element The broil element, which is usually found at the top of your cavity, provides high heat to brown or char the food. The broil setting in your oven is a great option for quickly grilling meat and vegetables, crisping up vegetables, warming lasagna or making caramel on top of a casserole. Similar to the bake element, the broiler heating element converts electrical energy into heat by the process of resistance. It is made up of an internal core of metal wires wrapped in insulating perlite material. The inside of the element is then covered with a stainless steel outer layer to shield the wires from direct contact with the oven. The three-layer structure helps reduce the temperature of the broil element, making it more durable and safer than the older designs of elements. Read More On this page 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. A different wattage can damage your oven, or cause it overheat. The current and voltage ratings of the latest heating elements can be found on the control panel of your oven. This will allow you to check the power and rating of your oven. You should also test the resistance of your old element and compare it to the power output of your new broiler heating element. The higher the resistance, the more the power that an oven element draws from. Replace the broiler element as soon as possible if it is not working or is acting up. Your oven must function correctly to to cook your favorite foods. If your oven does not function in any way, or just intermittently, then the issue could be with another part. Light Bulb and Assembly The oven light lets you keep an eye on your food while it cooks without opening the door and let heat escape. The light will also notify you when the casserole is done. It's not uncommon for the light to fail. It can be a hassle but it's an simple fix that you can accomplish yourself. Make sure that the breaker is not tripped, and that the connector has three prongs. First, remove the light bulb that was in use and find the new one. It is possible to search online for a replacement that matches the wattage and type of your oven. Some appliances use standard 40-watt bulbs some require halogen bulbs up to 50 watts. Be aware that the oils from your hands can damage a halogen bulb, so you should use cotton gloves when handling it. Before putting this site in place it is important to first take it out of its glass casing. It is important to 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 for the filament. If your bulb is always blinking it could be an electrical problem that requires an expert to fix it. Verify that you're using the correct oven bulb and consult your Use and Care Guide for additional troubleshooting tips. Make sure to unplug the oven and shut off the power before you start any repairs. This will prevent you from getting an electric shock. Vent Tube The vent tube is an important oven component because it allows for a small amount of airflow inside the cavity. This permits the bake element to circulate heat throughout the oven, ensuring that the temperature is evenly distributed. It also allows vapors to escape from the oven and smoke to be drawn from the cooking surface. It is necessary to ensure the proper operation of any gas or electric oven. Vents in ovens can get blocked due to a variety of factors. Accidental spills or splatters could leave sticky remnants in oven vents. They may draw in dust, debris and other contaminates that could cause blockages in the course of time. Oil and grease particles can become airborne and settle on the vents, as well. Other environmental factors like kitchen and construction work can create dust in the vents. This can cause clogs. Based on the model of the oven the vent tube could include a spreader 46 and an fill tip 12 and the bottle guide 20 which are integrated into the pipe 32. The bottle guide 20 may have a tapered edge that complements the tapered inside edge of the spreader to allow the vent tubes to be inserted smoothly into different sizes and shapes of bottle necks. A clogged or blocked vent tube can result in an increase in pressure within the enclosing structure, which can create a downdraft situation that pulls exhaust down the vent and backwards towards the oven burners, causing damage to the oven components. If you believe that your vent tube is blocked or blocked, consult a professional for help. They will diagnose the problem and give suggestions for clearing or cleaning the vent.