1. To repair the heating tube in the oven, it is necessary to disconnect the power supply of the oven and disassemble the shell from the back of the oven with a screwdriver tool.

2. After that, disassemble the side of the oven, carefully remove the pipe nuts, and use a special box to store each removed screw.

3. At this time, the original heating tube can be seen. Take out the new heating tube and install it. It's best to install it back to its original state in turn, and plug it in after checking it.