1, first remove the workbench, pay attention to which parts have screws, just remove them.
2. Then remove the screw, and then remove the instrument assembly.
3. After removing the instrument assembly, you can see the heater, and remove the screw of the heater.
4. Then remove the screw of the heater, and then remove the water pipe connecting the heater water tank.
Finally, just remove the water pipe connecting the heater tank and take it out.