What's going on with the wall-hung boiler alarm?
Recently, the problem of wall-hung boiler alarms has become the focus of many families, especially during the peak heating period in winter. In order to help everyone better understand and solve this problem, this article will conduct a detailed analysis of alarm causes, common fault codes and solutions, and combine it with hot topics and hot content on the entire network in the past 10 days to provide you with practical reference.
1. Common causes of wall-hung boiler alarms

Boiler alarms are usually safety mechanisms triggered by the system detecting abnormal conditions. Here are some common causes of alarms:
| Reason for alarm | Specific performance |
|---|---|
| Water pressure is too low | The wall-hung boiler displays low-voltage alarm codes (such as E1, E2) |
| Gas supply issues | Ignition failure or abnormal flame (such as E3, E4) |
| Temperature sensor failure | Displays abnormal temperature or damaged sensor (such as E5, E6) |
| Exhaust system clogged | Poor smoke exhaust or faulty air pressure switch (such as E7, E8) |
| Circuit board failure | The system cannot start or restarts frequently (such as E9, E10) |
2. Hot topics on the Internet in the past 10 days and discussions related to wall-hung boiler alarms
Through analysis of hot content on the entire network in the past 10 days, we found that the following topics are highly related to wall-hung boiler alarm issues:
| hot topics | focus of discussion |
|---|---|
| Wall-hung boiler maintenance in winter | How to prevent wall-hung boiler alarm problems |
| Interpretation of wall-hung boiler fault codes | Users share common alarm codes and solutions |
| Gas supply is unstable | Insufficient gas pressure in some areas causes wall-hung boiler alarms |
| Smart wall-mounted boiler function | Automatic diagnosis and alarm functions of new wall-hung boilers |
3. How to solve the problem of wall-hung boiler alarm
For different alarm reasons, the following solutions can be taken:
1. Water pressure is too low
Check the water pressure gauge of the wall-hung boiler. The normal value should be between 1-1.5Bar. If the water pressure is too low, you can replenish water through the water replenishment valve; if the water pressure is too high, you need to drain and reduce the pressure.
2. Gas supply issues
Make sure the gas valve is open and check if the gas pipe is clear. If the gas pressure is insufficient, you can contact the gas company for maintenance.
3. Temperature sensor failure
Damage or poor contact of the temperature sensor will cause an alarm. You can try cleaning the sensor or replacing it with a new one.
4. The exhaust system is clogged
Check whether the smoke exhaust pipe is blocked by foreign objects and ensure that the smoke exhaust is smooth. If the air pressure switch is faulty, it may need to be replaced with a new one.
5. Circuit board failure
Circuit board failures usually require professional maintenance personnel. It is recommended to contact after-sales service or professional maintenance team for maintenance.
4. Tips to prevent wall-hung boiler alarms
In order to avoid frequent alarms from wall-hung boilers, the following preventive measures can be taken:
1. Regularly check the water pressure and gas supply of the wall-hung boiler.
2. Perform professional maintenance every year before the heating season to clean the internal components.
3. Install a gas alarm to ensure the safety of gas use.
4. Avoid frequently switching the wall-hung boiler on and off to reduce system load.
5. Conclusion
Wall-mounted boiler alarms are a common safety protection mechanism. By understanding the causes and solutions of alarms, users can quickly troubleshoot and ensure the normal operation of the heating system. If the problem cannot be solved by yourself, it is recommended to contact professional maintenance personnel in time to avoid more serious damage caused by improper operation.
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