![]() It may only be on for a few minutes to toast bread, or, in the case of a baking/broiling unit, it may be on for an hour or more at a time. Servicing Heating Elements: A heating element is vital to your toaster oven. As needed, clean the contact points with emery paper. Clean debris away with a can of compressed air. Inspect the thermal cutout for debris, distortion, or discoloration. Some toaster ovens use a bimetallic thermostat or thermal cutout to protect the adjacent main switch from damage. In most models, this means cutting the fuse leads or wires and replacing the fuse unit. If defective, remove and replace the thermal fuse with one of identical rating. The thermal fuse should show continuity rather than an open circuit. If the main switch doesn't work, check the thermal fuse using a continuity tester or multitester. Servicing the Thermal Fuse: A thermal fuse protects the toaster oven's main switch from damage caused by an electrical overload. Main switches are fastened to the chassis with clips, screws, or rivets. Step 3: If the contacts are fused or the leaves broken, remove and replace the main switch. Be careful not to bend the contact leaves out of alignment. If they are not making good contact, carefully rub them with very fine sandpaper, then clean them with an electricalĬontact cleaner spray or isopropyl alcohol on the end of a cotton swab. Step 2: Check the contact points for pitting or discoloration. Step 1: Remove the side panel and, if necessary, the power cord. In many cases, all that's required is cleaning the switch. ![]() Servicing the Main Switch: The toaster oven's main switch is an important operating part, one that gets extensive use and is a frequent culprit when things go wrong. ![]() Typical toaster oven repairs include servicing the main switch, the thermal fuse, the heating element, and the solenoid. However, most operate in the same manner and can be diagnosed and repaired by applying the suggestions that follow. There are a variety of toaster oven models, each with its own features. If set for baking or broiling, the baking thermostat operates the heating elements as selected by the temperature controller and possibly by a timing mechanism. If set for toasting, a toaster thermostat operates the upper and lower heating elements as selected by the color controller. To operate a toaster oven, controls are set, the door is opened, food is placed on a tray, and the door is closed.
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