What should I do if the wall-mounted furnace cannot start fire? 10 common causes and solutions
As winter approaches, wall-mounted boilers are the core equipment for home heating. Once they fail to ignite, it will directly affect the comfort of life. This article will combine the hot maintenance topics on the Internet in the past 10 days, summarize the common causes and solutions of wall-mounted boiler ignition failures, and provide structured data for your reference.
1. Analysis of the 10 major reasons why the wall-hung boiler cannot start fire
| Ranking | Cause of failure | frequency of occurrence | User attention |
|---|---|---|---|
| 1 | Gas supply issues | 32% | ★★★★★ |
| 2 | Water pressure is too low | 28% | ★★★★☆ |
| 3 | Ignition electrode failure | 19% | ★★★★☆ |
| 4 | Solenoid valve damaged | 15% | ★★★☆☆ |
| 5 | Temperature sensor failure | 12% | ★★★☆☆ |
| 6 | Fan failure | 10% | ★★☆☆☆ |
| 7 | circuit board problem | 8% | ★★☆☆☆ |
| 8 | Flue blocked | 7% | ★★☆☆☆ |
| 9 | system freeze | 5% | ★☆☆☆☆ |
| 10 | other reasons | 4% | ★☆☆☆☆ |
2. Step-by-step troubleshooting guide
1.Check gas supply: First confirm whether the gas valve is open, whether there is a balance in the gas meter, and whether the gas pressure is normal. Recently, regional gas outages have occurred in many places due to maintenance by gas companies.
2.Check the water pressure gauge: Normal water pressure should be between 1-1.5bar. If it is lower than 0.8bar, water replenishment operation needs to be performed through the water replenishment valve. Be careful not to exceed 2bar when replenishing water.
3.reset operation: Press and hold the reset button for 3 seconds to see if it can re-ignite. This is the simplest and quickest solution.
4.Check power supply: Confirm whether the power indicator light of the wall-mounted boiler is on, whether the socket is powered on, and whether the leakage protector has tripped.
3. Q&A on popular maintenance issues
| question | solution | Solve the difficulty on your own |
|---|---|---|
| The wall-hung boiler makes a starting sound but does not light up. | Check the ignition electrode for carbon deposits and polish it with fine sandpaper | medium |
| E1/E2 error code appears on the display | Usually the ignition fails, the gas and circuit need to be checked | simple |
| Wall-hung boiler frequently shuts down automatically | The temperature sensor may be faulty and requires professional repair. | difficult |
| Newly installed wall-mounted boiler does not ignite for the first time | Check whether the gas valve is fully open and drain the air from the pipe | simple |
4. Preventive measures
1.Regular maintenance: It is recommended to perform professional maintenance every year before the heating season to clean the heat exchanger and check the sealing.
2.Antifreeze measures: When it is not used for a long time in winter, keep it powered on and turn on the antifreeze mode.
3.water quality treatment: It is recommended to install a water softener in areas with hard water to reduce scale accumulation.
4.daily observation: Pay attention to whether the running sound of the wall-hung boiler is abnormal, and observe the color of the flame (normally blue).
5. Maintenance cost reference
| Maintenance items | Labor cost | Material fee | Total cost range |
|---|---|---|---|
| Ignition electrode replacement | 150-200 yuan | 80-120 yuan | 230-320 yuan |
| Solenoid valve replacement | 200-300 yuan | 150-250 yuan | 350-550 yuan |
| Circuit board repair | 300-400 yuan | 400-800 yuan | 700-1200 yuan |
| Annual maintenance | 200-300 yuan | 100-200 yuan | 300-500 yuan |
Warm reminder:If the problem cannot be solved after the above inspections, it is recommended to contact the brand’s after-sales or professional maintenance personnel. Self-disassembly may void the warranty or cause safety hazards. Keep your proof of purchase and warranty card, as some brands offer extended warranty services.
Through the above structured analysis and solutions, we hope to help you quickly solve the problem of wall-mounted boiler not igniting. If you encounter special circumstances, please leave a message in the comment area for discussion.
check the details
check the details
en
