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How to Repair Common Oven Parts Oven is a common kitchen appliance used to cook food. The heat from the oven sterilizes food and kills the majority of microorganisms. oven hob need an accurate oven thermometer. Knowing how your oven works will help improve your baking cooking, roasting and cooking abilities. It will also eliminate those annoying hot spots which can ruin cakes, cookies and baked products. Thermostat The thermostat is an important part 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. As with any electronic mechanical switch or sensor, it may have issues that cause the oven to over heat or under heat, or not be able to maintain the temperature at what you've set. The oven thermostat is basically an extremely small strip of two different metals bonded together. When heated, the metals expand and bend at different rates. This creates an electrical circuit. When the metal in your thermostat reaches the temperature that you have set on the control panel it will turn off the heating element's power. As the oven cools the bimetallic strips expand, re-establishing circuit and turning on heating element. This process continues to ensure that the temperature remains constant in 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 reads zero or very close to it then the thermostat is operating properly and doesn't require to be replaced. If the multimeter isn't reading anything at all, then the thermostat is not working properly and requires replacement. Cooker Spare Parts suggests that you replace your thermostat with a similar type as the previous one. They can be purchased online or at an appliance store and can be purchased at a reasonable cost. Bake Element Ovens are not complete without the bake element, which is the element that heats up to help your oven cook food. It's a simple element that transforms electricity into high temperatures for baking, roasting, and broiling. Electric ovens and ranges usually have heating elements, which can be exposed or hidden beneath the floor. In general oven heating elements comprise of high-resistance metals like nickel-chromium. They convert electricity into heat via resistance. This heat then radiates through the interior of the oven to reach the desired temperature to cook various types of food. When you switch on your oven the heating element starts to work by generating heat through the high-voltage electricity moving across its metal surface. The element is a coil or ribbon (straight or corrugated) of wire, and when the electric current flows through it, it begins 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 all oven functions. It's usually located in the bottom of the oven and is also used for the self-cleaning feature in many automatic oven models. You might observe that the oven does not get hot as fast or that your food hasn't been cooked to perfection. To determine if you have a functioning oven baking element connect your multimeter to its black and red ports, then rub the probes made of steel against each other on one end of the element. Place the other end of the element on one terminal and place your hands on it. If the element feels warm, remove it and start testing again. If not, take it off and try again. Broil Element The broil element is typically located in the top of the oven's cavity and produces high-temperature heat similar to grills to brown or char food items. The oven's broil setting is ideal for quick grill meat or crisp vegetables, to heat up lasagna, or caramelize the topping of the casserole. The broiler heating element is comparable to the bake element in that it converts electrical energy via resistance into heat. It is made up of an inner core made up of metal wires, which are wrapped in an insulating and expanded product known as perlite. The inner core is then encased in an outer layer of stainless steel, which protects the wires from direct contact with the oven. The three-layer design helps to reduce the temperature of the broil element, making it safer than older designs. While you can use any baking or broiling heating element in your oven, you should choose one that matches the rated wattage 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 can be located on the control panel of your oven. This will allow you to examine the power and rating of your oven. It is also advisable to check the resistance of your previous element and compare it with the power output of your new broiler heating element. The higher the resistance, the more the power that an oven element draws from. If your broiler's heating element is malfunctioning or isn't working in any way, you should replace it as soon as possible. It's important that your oven function properly so that you can cook all of your favorite food items. If your oven isn't working at all, or is only working intermittently, the issue could lie with another part of your oven. Light Bulb and Assembly The light allows you to monitor your food as it cooks, without opening the door and let heat escape. The light also lets you know when your casserole is ready. It's not uncommon for the bulb to go out. It can be quite frustrating, but you can do it yourself. Before you begin, be sure that the breaker isn't tripped and that the three-prong connector is intact. Remove the old bulb and then look for the new bulb. You may have to search online to find the correct replacement bulb that matches the wattage of your oven. Some ovens have normal appliance bulbs of 40 watts some require lamps that are halogen up to 50 watts. It is recommended to use cotton gloves to shield halogen bulbs from damage caused by oil. Remove the glass casing of the bulb before replacing it. It's important to take this step slowly to ensure that you don't fracture it. Then, you'll need to remove the air from the bulb and fill it with gas mixture. This ensures a longer life for the filament. If your bulb keeps being replaced, it could be a wider electrical problem that needs to be handled by an expert. Make sure you're using the correct oven bulb and check your Use and Care Guide for more troubleshooting advice. And remember that it's always an excellent idea to unplug your oven and disconnect the power from the outlet before you begin any repair. This will keep 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, making sure that the temperature is distributed evenly. 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 vital for the proper operation of any gas or electric oven. Oven vent tubes can become clogged or blocked by several reasons. Accidental spills or splatters while cooking can leave sticky residues on the oven vents, which can draw dust and other debris that could eventually cause obstructions or blockages over time. Oil and grease can also become airborne, and then settle around vents. Other environmental factors, like kitchen renovations and construction work can introduce dust or other contaminants into the vents, which can cause blockages or clogs. Based on the type of the oven the vent tube could include a spreader, an fill tip 12 and the bottle guide 20 which are incorporated into the pipe 32. The bottle guide 20 can have a tapered outer edge that complements the tapered inner edge of the spreader, allowing the vent tubes to slide smoothly into different sizes and shapes of bottle necks. A clogged vent tube can cause a loss in pressure inside the enclosure which can cause an exhaust downdraft, which pulls the exhaust backwards and then down the vent, damaging the oven's components. If you think that your vent tube is blocked or blocked, contact a professional for help. They will diagnose the issue and offer suggestions on how to clear or clean the vent.