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How to Repair Common Oven Parts The oven is an appliance used in kitchens that is commonly used to cook food items. The heat from the oven sterilizes food items and kills the majority of microorganisms. All bakers require an accurate oven thermometer. Knowing how your oven functions will improve your baking and roasting skills and eliminate those irritated hot spots that wreak havoc with cakes, cookies and other baked products. Thermostat The thermostat is an important component of your oven. It helps to ensure that the temperature of food is in line with the temperature you have set on the control panel. It can be problematic as with any other switch or sensor that is electro-mechanical. The oven could overheat or underheat, or not keep the temperature you have set. The oven thermostat is basically an extremely small strip of two different metals that are joined. When heated, the different metals expand and bend at different rates, making or breaking an electrical circuit. When the thermostat's metal is at 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, re-establishing circuit and turning on the heating element. This cycle is constantly repeated to ensure a constant temperature within your oven. It is necessary to disconnect the oven and all screws removed to identify the issue with the thermostat. Set your multimeter to the Ohms setting, and then test the thermostat. If the multimeter shows zero or close to zero it means that the thermostat is working correctly and does not need to be changed. If the multimeter doesn't read anything, then the thermostat is not working properly and must be replaced. Cooker Spare Parts recommends that you replace the thermostat with a new one that is the same model as the one you have. The thermostats are sold at a reasonable cost on the internet or in a kitchen goods shop. Bake Element Ovens aren't complete without the bake element, which creates heat to make your oven cook food. It's a small element that converts electricity into the high temperatures needed for baking, roasting, and broiling. Electric ovens and ranges often contain heating elements, which are either visible or hidden under the floor. In general oven heating elements comprise of high-resistance elements such as nickel-chromium. They convert electrical energy into heat via the process of resistance which then radiates throughout the oven's interior to raise the temperature to the desired level to cook various types of food. When you switch on the oven the heating elements start to produce heat due to the high-voltage electric current flowing 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 begins to increase in temperature. When the element reaches its desired temperature it starts to shine red hot. The baked element is the main source of heat for the majority of oven functions. It's usually located at the in the bottom of the oven. A lot of ovens that are automated also have it for self-cleaning. You might observe that the oven does not get hot as fast or that your food isn't cooked completely. Plug your multimeter in to its black and red ports. Then, you can press the metal probes on one side of the element against each other. Place the other end of the element against one terminal and place your hands on it. If the element feels warm, remove it and try testing it again. If not, take it off and try again. Broil Element The broil element, typically located at the top of your cavity offers high heat to brown or char food items. The broil setting of your oven is an excellent option for quickly grilling meat or vegetables, crisping them up, reheating 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 made up of an inner core comprised of wires made of metal, encased in an insulating and expanded product called perlite. The inner core of the element is covered with an outer layer of stainless steel to shield the wires from direct contact with the oven. The three-layer structure reduces the temperature of the broil element which makes it safer and more efficient than the older designs of elements. You can use any heating element for baking or broiling in your oven. But, you must select one that matches the wattage of your oven's rating. oven and hob can cause damage to your oven or cause it to overheat. The current and voltage ratings of the new heating elements are available on the control panel of your oven. This allows you to determine the power and rating of your oven. Examine the resistance of the previous 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. 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 function properly so that you can cook your most loved food items. If your oven does not function at all, or only intermittently, then the issue could be with another part. Light Bulb and Assembly The light allows you to monitor your food while it cooks, without opening the door and letting heat escape. The light will also inform you when the casserole has been cooked. But it's not uncommon for the light to fail. It can be frustrating but you can do it yourself. Before oven hob begin, be sure that the breaker isn't tripped and that the three-prong connector is intact. First, remove the old light bulb and find the new one. It is possible to search the internet for the right replacement bulb that is compatible with the wattage of your oven. Some ovens use standard appliance bulbs that run at 40 watts and others require a halogen lamp up to 50 watts. Consider using cotton gloves to shield the bulbs from damage caused by oil. Remove the glass casing of the bulb before you replace it. It is important to do this slowly so that you don't break it. Then, you'll need to remove the air from the bulb and fill it up with a mixture of gases. This will ensure a longer lifespan for the filament. If your bulb is constantly going out, there could be a wider electrical problem that needs to be dealt with by a professional. Double check that you are using the correct oven bulb and look over your Use and Care Guide to find more troubleshooting advice. Remember that it's a good idea to unplug your oven and disconnect the power from the outlet before you begin any repair. This will keep you from being shocked by electricity. 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 dispersed. It also allows the vapors that are released from the oven to escape and allows smoke to be drained away from the cooking surface. It is crucial for the proper operation of any gas or electric oven. Oven vent tubes may become clogged by a variety of factors. Accidental spills and splatters from cooking can leave sticky residues on oven vents, which could attract dust and other debris which can lead to blockages or clogs in the course of time. Grease and oil may also become airborne, and then settle on vents. Other environmental factors, like kitchen construction and renovations, can introduce dust or other contaminants into the vents, which can cause blockages or clogs. Based on the model of the oven the vent tube may comprise a spreader 46, the fill tip 12, and a bottle guide 20 that are incorporated into 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 effortlessly into various sizes and shapes bottle necks. A blocked vent tube could cause a loss in pressure within the enclosure, which can lead to an exhaust downdraft, which pulls the exhaust backwards and then down the vent, damaging the oven's components. Consult a professional if suspect that your vent tube could be blocked or clogged. They will identify the issue and offer suggestions for removing or cleaning the vent.