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How to Repair Common Oven Parts The oven is an appliance used in kitchens that is used to cook food items. The heat from the oven sterilizes food and kills the majority of microorganisms. All bakers need an accurate oven thermometer. Knowing how your oven functions will improve your baking cooking, roasting and cooking skills. It will also eliminate those annoying hot spots which can ruin cookies, cakes and baked products. Thermostat The thermostat 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. As with any electronic mechanical switch or sensor, it may have issues that can cause the oven to over or under heat, or simply not be able to keep the temperature at what you've set. The oven thermostat is tiny strips of two different metals that are joined. When exposed to heat, the various metals expand and contract at different rates, making or breaking an electrical circuit. When the metal in your thermostat reaches the temperature that you set on your control panel it will shut off power to the heater. As the oven cools the bimetallic strips expand to re-establish the circuit before turning on heating element. This cycle continues for a long time to ensure a constant oven temperature. The oven must be disconnected and all screws removed in order to determine a thermostat problem. If you have a multimeter (which is a tool that measures the electrical current) set it to the ohms setting, and then test the thermostat. If the multimeter reads zero or close to zero, the thermostat is functioning properly and doesn't need to be changed. If the multimeter does not read anything, then the thermostat is defective and needs to be replaced. Cooker Spare Parts suggests that you replace your thermostat with a similar type as the previous one. These thermostats are available at a reasonable price online or at the kitchen store. Bake Element The bake element is crucial to the operation of your oven. It provides heat that lets it cook food. It's a simple component that transforms electricity into high temperatures for baking, roasting and broiling. Heating elements are usually found in electric ovens and ranges and are covered or hidden beneath the floor of the oven. In general oven heating elements are made up of high-resistance elements such as nickel-chromium. They work by converting electrical energy into heat by the process of resistance which radiates outwards into the oven's interior to raise the temperature to the desired degree to cook various types of food. When you turn on your oven, the heating element begins to generate heat from the high-voltage electrical energy that flows across its metallic surface. The element is a ribbon or coil (straight or corrugated) of wire. When the electric current flows through it, it begins to get hotter. When the element reaches the temperature it is intended to it starts to be lit up in red hot. The baked element is the main source of heat for most oven functions. It's usually located in the bottom of the oven and is used for the self-cleaning feature in many ovens with automatic cleaning. You might observe that the oven doesn't get hot as fast, or that your food hasn't been fully cooked. To verify that you have a working oven baking element, plug your multimeter into its red and black ports, then rub the probes made of metal against each other on the opposite side of the element. Place 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 try testing it again. If not, take it off and try again. Broil Element The broil element is typically located in the top of the oven cavity and provides the same high temperature as a grill to cook or brown food items. The broil setting in your oven is an excellent option for quickly grilling meat or vegetables, crisping them up, reheating lasagna, or caramelizing the top of a casserole. Similar to the bake element, the broiler heating element converts electrical energy into heat via the process of resistance. It is comprised of an inner core of wires made of metal wrapped in insulating expanded perlite material. The inner core 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 design helps lower the temperature of the broil element, making it more secure than older styles. While you are able to use any heating element in your oven, make sure to choose one that is in line with the wattage rating of your oven. Using a different wattage can cause damage to your oven or cause it to overheat. You can check the power of your oven and the rating of the new heating element by checking their current and voltage ratings on the oven's control panel. Check the resistance of the old element, and compare it to the wattage ratings of the new element. The higher the resistance of an oven element, the more power it uses. If the heating element in your broiler is not working or functions at all, you should replace it immediately. Your oven must function properly for you to to cook your favorite foods. However, if your oven is not working at all or only intermittently, the issue may be with a different part of your oven. Light Bulb and Assembly The light allows you to keep an eye on your food as it cooks, without opening the door and letting heat escape. The light will also inform you when the casserole is done. But it's not uncommon for the light bulb to go out. This can be very frustrating, but it's a relatively easy repair that you can tackle yourself. Before you begin, make sure that the breaker hasn't tripped and that the three-prong connector remains intact. First, remove the light bulb that was in use and locate the new one. You may have to look online to find the correct replacement bulb that is compatible with your oven's wattage. Some ovens utilize standard appliances with bulbs that are 40 watts in power, while others need a halogen lamp up to 50 watts. Be aware that the oils from your hands could damage a halogen bulb, so you should use cotton gloves when handling it. Remove the glass casing of the bulb before you replace it. It's crucial to take this step slowly to ensure that you don't fracture it. After that, you'll need to evacuate the air inside the bulb and fill it with a mixture of gases. This ensures a longer life for the filament. If best oven uk keeps running out it could be due to an electrical issue that requires an expert to fix it. Verify that you're using the correct oven bulb and check your Use and Care Guide to get more help in troubleshooting. Remember to unplug the oven and turn off the power before you start any repairs. This will protect your from electrical shock. Vent Tube The vent tube is a crucial oven element because it allows a small amount of airflow to be created within the cavity. This allows the bake element to circulate heat throughout the oven, making sure that the temperature is distributed evenly. It also allows the vapors that are released from the oven to escape, and also allows smoke to be removed from the cooking surface. It is necessary to ensure the proper operation of any gas or electric oven. Oven vent tubes can become blocked or clogged due to a variety of factors. Accidental spills or splatters may leave sticky residues in oven vents. These can attract dust, debris and other contaminants that could cause clogs over time. Grease and oil may also be airborne and then settle on vents. Other environmental factors, like kitchen renovations and construction work, could introduce dust and other contaminants into the vents, which can cause obstructions or clogs. Depending on the oven model, the vent tube may comprise a bottle guide 20 or spreader 46 as well as a fill tip 12 that are integrally constructed with the pipe 32. The bottle guide 20 can have a tapered outer edge that matches the tapered inside edge of the spreader to allow the vent tubes to be placed effortlessly into various sizes and shapes bottle necks. A blocked or clogged vent tube can result in a loss of pressure within the enclosing structure, which can create a downdraft situation which pulls exhaust down vent and backwards through the oven's burners, which can cause damage to oven components. If you think that the vent tube in your oven is clogged or blocked, contact an expert for assistance. They will identify the issue and give suggestions for clearing or cleaning the vent.