The steps to disassemble the water pressure valve of the gas water heater are as follows:
1. Close the valve of the gas water heater, cut off the supply of gas and water, and unplug the power plug to prevent electric shock.
2. Use a wrench to disassemble the water pipe and pressure gauge from the water pressure valve. Pay attention to wipe the water traces and impurities on the water pipe and pressure gauge with a dry cloth or towel.
3. Use a screwdriver to loosen the nut, and then remove the shell. Check whether the valve safety belt under the water pressure valve is intact. If it is damaged, replace it in time.
4. Take out the valve core and check whether there are signs of wear or damage on the surface of the valve core. If so, you need to replace the valve core with a new one and clean the impurities on the surface of the valve core.
The above is for reference only. If you encounter problems, it is recommended to seek guidance from professional maintenance personnel.