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How to Repair Common Oven Parts The oven is a kitchen appliance that is commonly used to cook food items. The heat from the oven sterilizes food items and kills most of the micro-organisms in them. A reliable oven thermometer is a necessity for all bakers. Understanding how your oven functions will help improve your baking, roasting and cooking skills. It can also help you avoid those hot spots that can ruin cookies, cakes and baked goods. Thermostat The thermostat is one of the most crucial components of your oven, helping ensure that the temperature of your food is exactly the temperature you've set on your control panel. It can be problematic, just like any other switch or sensor that is electro-mechanical. The oven may overheat or underheat, or not keep the temperature you set. The oven thermostat is an extremely small piece of different metals that are bonded. When heated the different metals expand and bend at different rates, forming or breaking an electrical circuit. When the metal in your thermostat reaches the temperature you have set on your control panel it will shut off the heating element's power. When the oven cools down the bimetallic strip contract in a way, reestablishing the circuit and activating the heating element. This process is repeated repeatedly to ensure that the oven remains at a constant 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 detects electrical current), set it to the ohms setting, and then test the thermostat. If the multimeter displays zero or close to zero it means that the thermostat is working properly and doesn't need to be changed. If the multimeter fails to show anything then the thermostat is not working properly. It is time to get it replaced. Cooker Spare Parts recommends that you replace the thermostat with a fresh one of the same type as your old one. The thermostats are available for purchase 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 component that turns electricity into the high temperatures needed to bake, roast, and broiling. Heating best hobs are usually found in electric ovens and ranges and can be covered or hidden beneath the oven's floor. In general, oven heating elements consist of high-resistance materials such as nickel-chromium. They convert electrical energy into heat using resistance. This heat then radiates through the interior of the oven to reach the temperature required to cook different kinds of food. When you switch on your oven the heating element gets 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 flows through it, it begins to heat up. The element will glow red hot when it reaches the desired temperature. The baked element is the main source of heat for the majority of oven functions. It's usually located at the bottom of the oven and is also used to perform the self-cleaning function in a variety of ovens that are automatic. You may be noticing that your oven doesn't get hot as fast, or that your food hasn'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 device against each other. The other end of the baking element against one terminal and then place your hand on it. If the element feels warm, take it off it and start testing again. If not, take it off and try again. Broil Element The broil element, which is usually found at the top of the cavity, allows high-temperature temperatures to brown or char the food. The oven's broil setting is an excellent way to quickly grill meat, crisp vegetables, reheat lasagna or caramelize the topping of a casserole. Similar to the bake element the broiler heating element transforms electrical energy into heat via the process of resistance. It is made up of an inner core consisting of metal wires, wrapped in an insulating and expanded product called perlite. The core of the element is covered with a stainless steel outer layer to protect the wires against direct contact with the oven. The three-layer structure reduces the temperature of the broil element, making it more durable and safer than older types of elements. You can use any heating element you want to use for baking or broiling in your oven. However, you should choose one that is compatible with the wattage that your oven is rated for. Utilizing a different wattage may damage your oven or cause it to overheat. The voltage and current ratings of the latest heating elements can be located on the control panel of your oven. This allows you to determine the ratings and wattage of your oven. Examine the resistance of your old element, and compare it to the wattage ratings of the new one. The higher the resistance, the greater energy an oven element consumes. Replace the broiler element as soon as possible If it's not working or is acting up. It is essential that your oven functions correctly to be able to cook your most loved food items. If your oven does not work in any way, or just intermittently, the issue may be in a different part. Light Bulb and Assembly The light lets you monitor your food while it cooks without opening the door and let heat escape. The light will also inform you when the casserole is done. It's not uncommon for the bulb to die. It can be a hassle, but you can do it yourself. Before you begin, be sure that the breaker isn't tripped and that the three-prong connector is in good condition. Remove the old bulb and then locate the new one. You may have to look online to find a replacement that matches the wattage and type of your oven. Some ovens have normal appliance bulbs of 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. Before you place the new bulb in place it is important to first take it out of its glass casing. It is important to do this slowly so that you don't break it. Then, you'll need to evacuate the air inside the bulb and fill it with an amalgamation of gases. This ensures a longer life for the filament. If your bulb is always running out it could be an electrical issue that needs a professional to fix. Make sure that you're using the right bulb for your oven, and check out your Use and Care Guide for more troubleshooting tips. Remember to unplug the oven and shut off the power prior to beginning any repairs. This will prevent you from suffering an electric shock. Vent Tube The vent tube is an essential oven part as it allows for a small amount of airflow to flow inside the cavity. This allows the bake element to circulate heat around the oven, ensuring that the temperature is evenly distributed. It also allows vapors to escape from the oven, and smoke to be drained from the cooking surface. It is vital for the proper operation of any gas or electric oven. Vents for ovens can become clogged by various reasons. Accidental spills or splatters can leave sticky residues in oven vents. They may attract debris, dust and other contaminates that could cause blockages in the course of time. Oil and grease can also become airborne and settle around vents. Other environmental factors, such as kitchen renovations and construction work can bring dust and other contaminants into the vents, which can cause blockages or clogs. Depending on the oven model the vent tube may comprise the bottle guide 20 or spreader 46 as well as a fill tip 12 that are constructed with the pipe 32. For example, the bottle guide 20 might have a tapered outer surface that is complemented by the tapered inside of the spreader 46, allowing the vent tube to be effortlessly inserted into different sizes and forms of bottle necks. A blocked vent tube may cause a reduction in pressure inside the enclosure which can cause a downdraft that pulls exhaust forward and down the vent, causing damage to oven components. If you believe that your vent tube is clogged or blocked, contact an expert for assistance. They will identify the issue and offer suggestions for removing or cleaning the vent.