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How to Repair Common Oven Parts The oven is an appliance in the kitchen that is commonly used to cook food items. The heat from the oven sterilizes food items and kills the majority of microorganisms. A precise oven thermometer is essential for bakers of all kinds. Understanding how your oven functions can help you improve your baking, roasting and cooking skills. It can also help you avoid those hot spots that can ruin cakes, cookies and baked items. Thermostat The thermostat is a crucial component of your oven. It assists in ensuring that the temperature of food is in line with 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 may overheat or underheat, or simply not maintain the temperature you have set. The oven thermostat is a small strip of two different metals bonded together. When heated by the oven, the metals expand and bend at different rates. This creates an electrical circuit. When the metal in the thermostat reaches the temperature you've set on your control panel it shuts off the heating element's power. As the oven cools the bimetallic strips expand in a circuit, re-establishing it and turning on the heating element. This cycle is repeated continuously to ensure a constant oven temperature. You'll need the oven disconnected and all screws removed to identify the problem with the thermostat. If you own a multimeter (which is a tool that analyzes the electrical current), set it to the ohms level and then test the thermostat. If the multimeter reads zero or close to zero it means that the thermostat is working properly and doesn't need to be changed. If the multimeter doesn't read anything, it's likely that the thermostat is not working properly and requires replacement. Cooker Spare Parts suggests that you replace your thermostat with a thermostat of the same model as the one you have. The thermostats are sold at a reasonable cost online or at the kitchen store. Bake Element The bake element is essential to the functioning of your oven. best hobs provides heat that allows it to cook food. It's a small component that turns electricity into the high temperatures needed to bake, roast, and broiling. Heating elements are commonly found in electric ovens and ranges and can be covered or hidden beneath the floor of the oven. In general, oven heating elements consist of high-resistance materials such as nickel-chromium. They work by converting electrical energy into heat using resistance. The heat then radiates through the oven's interior to achieve the desired temperature for cooking different types foods. When you switch on your oven, the heating element begins to work by generating heat through the high-voltage electricity moving across its metal surface. The element is a ribbon or coil (straight or corrugated) of wire, and as the electric current passes through it, it begins to get hotter. When the element reaches the temperature it is intended to it begins to be lit up in red hot. The baked element is the primary source of heat for most oven functions. It is typically located at the in the bottom of the oven. Many ovens with automatic heating also use it for self-cleaning. You might notice that the oven does not warm up as quickly or that your food isn't cooked to perfection. To determine if you have a functioning oven baking element connect your multimeter to its black and red ports, and then place the probes made of steel against each other on one side of the element. The other end should be placed against one of its terminals and place your hand on it to feel whether the baking element is warm to the contact. If not, take it off the element and start testing again. Broil Element The broil element is usually situated in the top of the oven and can provide the same high temperature as grills to cook or brown food items. The broil setting in your oven is an excellent 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 through the process of resistance. It is comprised of an inner core of metal wires wrapped in insulating expanded perlite product. The inner core is then encased in an outer layer of stainless steel to shield the wires from direct contact with the oven. The three-layer design can help reduce the temperature of the broil element, making it more secure than the older models. While you may use any baking or broiling heating element in your oven, you should select one that is compatible with the wattage rating of your oven. A different wattage could cause damage to your oven or cause it to overheat. The current and voltage ratings of the latest heating elements are available on the control panel of your oven. This will allow you to examine the power and rating of your oven. Examine the resistance of your old element, and compare it with the wattage rating of the new one. The greater the resistance of an oven element, the more power it uses. Replace the broiler element as soon as possible if it is not working or if it is acting up. It is essential that your oven functions properly to cook your most loved food items. If your oven doesn't work at all, or only intermittently, then the issue could be with another part. Light Bulb and Assembly The light allows you to monitor the food that is cooking, without opening the door and let heat escape. The light also lets you know when the casserole is ready. It's not uncommon for the light bulb to go out. It can be frustrating but you can fix it yourself. Check that the breaker isn't tripped and that the connector has three prongs. Remove the old bulb and then locate the new one. It is possible to look online for the right replacement bulb that is compatible with your oven's wattage. Some appliances use standard 40-watt bulbs and others require a halogen bulb that is up to 50 watts. You should consider using cotton gloves to protect the bulbs from the damage caused by oil. Remove the glass casing of the bulb before replacing it. It is important to take this step slowly to ensure that you don't damage it. Then, you'll need to remove the air from the bulb and replace it with the mixture. This will extend the filament life. If your bulb keeps being replaced, it may be a larger electrical issue that must be addressed by a professional. Verify that you're using the correct oven bulb and look over your Use and Care Guide to find more troubleshooting advice. Remember to unplug the oven and shut off the power before beginning any repairs. This will prevent you from suffering an electric shock. Vent Tube The vent tube is a vital oven component that allows for an airflow within the cavity. This allows the bake element to circulate heat throughout the oven, ensuring that the temperature is evenly distributed. It also allows the vapors escape from the oven, and smoke to be drained from the cooking surface. It is essential to ensure the proper operation of any gas or electric oven. Oven vent tubes can become blocked or blocked due to several factors. Accidental spills or splatters while cooking can leave sticky residues on oven vents, which can attract dust and other particles that can eventually cause clogs or blockages in the course of time. Oil and grease can also become airborne, and settle on vents. Other environmental factors, such as kitchen renovations and construction work, could introduce dust and other contaminants into the vents, which can cause blockages or clogs. Depending on the oven model the vent tube may include an a bottle guide 20, spreader 46 and fill tip 12 that are formed with the pipe 32. For example the bottle guide 20 could have a tapered outer surface which is in harmony with the tapered inner surface of the spreader 46, allowing the vent tube to be smoothly placed into various sizes and designs of bottle necks. A blocked vent tube could cause a reduction in pressure inside the enclosure which can cause a downdraft that pulls exhaust backwards and down the vent, causing damage to the oven components. Consult a professional if you believe that your vent could be blocked or clogged. They will identify the problem and make recommendations on how to remove or clean the vent.