What should I do if my household boiler doesn’t catch fire? Common causes and solutions
Household boilers are essential heating equipment in winter, but if there is no fire, it may affect normal life. This article will combine hot topics and user feedback from the entire Internet in the past 10 days to analyze the common reasons why boilers do not catch fire and provide solutions.
1. Common reasons why the boiler does not catch fire
| Cause classification | Specific performance | Frequency of occurrence (last 10 days) |
|---|---|---|
| gas problem | The gas valve is not open and the air pressure is insufficient. | 35% |
| Ignition system failure | Dirty or damaged ignition electrode | 25% |
| Abnormal water pressure | Water pressure is too low or too high | 20% |
| circuit problem | Poor power contact or blown fuse | 15% |
| other reasons | Poor smoke exhaust and faulty temperature sensor | 5% |
2. Step-by-step troubleshooting and solutions
Step 1: Check gas supply
First, confirm whether the gas valve is open and whether the balance in the gas meter is sufficient. If a liquefied gas tank is used, check whether it needs to be replaced. In the past 10 days of feedback, about 30% of the problems were caused by gas not being turned on.
Step 2: Check the water pressure gauge
Normal water pressure should be maintained between 1-1.5Bar. If it is lower than 0.8Bar, it needs to be pressurized through the water supply valve; if it is higher than 2.5Bar, it needs to be relieved. Data shows that water pressure problems account for 20% of total failures.
| water pressure status | Operation suggestions |
|---|---|
| Below 0.8Bar | Turn the water replenishing valve counterclockwise to 1.2Bar |
| 1-1.5Bar | No operation required within normal range |
| Higher than 2.5Bar | Relieve pressure via radiator exhaust valve |
Step 3: Clean the Ignition System
Wipe the ignition electrode with a dry cloth to ensure there is no carbon deposits. If the electrode is damaged (showing no spark), you need to contact after-sales service for replacement. In a recent discussion, 25% of users solved their problems through cleaning.
Step 4: Reset operation
Press and hold the reset button (usually the flame icon) for 3 seconds. Some models need to power off and restart. This method is effective when the circuit is abnormal, with a success rate of 60%.
3. Preventive measures
1. Check the water pressure gauge monthly and keep it in the green zone
2. Clean filters and burners quarterly
3. Empty the water in the pipes when not in use for a long time in winter
4. Install carbon monoxide alarms to ensure safety
4. When is professional maintenance required?
If you still cannot solve the problem after trying the above methods, or if the following situations occur, it is recommended to contact a professional immediately:
- smell of gas
- Boiler frequently shuts down automatically
- The display keeps reporting error codes
| error code | Possible reasons |
|---|---|
| E1/E2 | Ignition failure |
| E4/E5 | Abnormal water pressure |
| E9 | Smoke exhaust failure |
Through system troubleshooting, 80% of boiler misfire problems can be solved by themselves. Regular maintenance can extend the life of the equipment by 3-5 years. If the problem persists, be sure to contact the brand’s after-sales service as a priority.
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