How to adjust the gas valve of the wall-mounted boiler
With the arrival of winter, the frequency of use of wall-mounted boilers gradually increases, and the adjustment of gas valves has become the focus of many users. Correctly adjusting the gas valve not only improves the efficiency of the wall-hung boiler, but also ensures safe use. This article will introduce in detail the adjustment method of the wall-mounted boiler gas valve, and attach relevant data for reference.
1. The importance of gas valve adjustment for wall-hung boilers

The gas valve is one of the core components of the wall-hung boiler and is mainly responsible for controlling the flow and pressure of gas. If the gas valve is improperly adjusted, it may cause insufficient combustion of the wall-mounted boiler, increase energy consumption, and even cause safety hazards. Therefore, it is crucial to master the correct adjustment method.
2. Adjustment steps of gas valve of wall-hung boiler
1.Turn off the power to the wall-hung boiler: Before adjusting the gas valve, be sure to turn off the power supply to the wall-hung boiler to ensure safe operation.
2.Find the gas valve location: The gas valve is usually located at the bottom or side of the wall-hung boiler. Please refer to the product manual for the specific location.
3.Adjust gas pressure: Use a special tool (such as a screwdriver) to rotate the adjusting screw on the gas valve. Clockwise direction will reduce the pressure, and counterclockwise direction will increase the pressure.
4.Test combustion effect: After the adjustment is completed, restart the wall-mounted boiler and observe the flame color and combustion state. The normal flame should be blue. If a yellow flame appears, further adjustment is required.
5.Record adjustment data: It is recommended to record the gas pressure data before and after adjustment for subsequent reference.
3. Gas valve adjustment reference data
| Adjustment items | normal range | abnormal behavior |
|---|---|---|
| gas pressure | 1.5-2.0 kPa | Pressure too high or too low |
| flame color | blue | yellow or red |
| burning sound | Uniform and stable | Excessive or irregular noise |
4. Common problems and solutions
1.Gas valve cannot be adjusted: The valve may be damaged or blocked. It is recommended to contact professional maintenance personnel for inspection.
2.Abnormal flame color: It may be that the gas pressure is insufficient or the air mixing ratio is improper. The gas valve needs to be readjusted or the burner must be cleaned.
3.Wall-hung boiler frequently flames out: The gas pressure may be unstable, and the gas valve and gas supply pipeline need to be checked.
5. Safety precautions
1. When adjusting the gas valve, be sure to ensure that the surrounding environment is well ventilated to avoid gas leakage.
2. If you are not familiar with the adjustment operation, it is recommended to contact professional technicians for processing.
3. Regularly check the gas valve and other parts of the wall-mounted boiler to ensure that the equipment is in good condition.
6. Conclusion
Correctly adjusting the gas valve of a wall-hung boiler is key to ensuring efficient and safe operation of the equipment. Through the introduction of this article, I believe you have mastered the basic adjustment methods and precautions. If you encounter any problems during operation, please seek professional help in time.
Finally, here are the hot topics related to wall-mounted boilers in the hot topics on the Internet in the past 10 days, for your reference:
| hot topics | Attention | Main content |
|---|---|---|
| Wall-hung boiler maintenance in winter | high | How to do winter maintenance of wall-hung boilers |
| Safe use of gas | high | Guidelines for safe use of gas appliances |
| Recommended energy-saving wall-hung boilers | in | Comparison and recommendation of energy-saving wall-hung boilers on the market |
I hope this article can provide you with practical help, and wish you safe and comfortable heating in winter!
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