Why isn't the radiator hot? Comprehensive analysis of causes and solutions
As winter approaches, radiators that do not heat up have become a common problem faced by many families. This article will combine the popular discussions on the Internet in the past 10 days to provide you with a detailed analysis of the possible reasons why the radiator is not hot, and provide practical solutions.
1. Common reasons why the radiator is not hot
| Reason type | Specific performance | probability of occurrence |
|---|---|---|
| Air blockage | The upper part of the radiator is hot and the lower part is cool | 45% |
| Insufficient water pressure | The temperature of the entire radiator is low | 25% |
| clogged pipes | Some radiators are not hot | 15% |
| system imbalance | The remote radiator is not hot | 10% |
| other reasons | Temperature control valve failure, etc. | 5% |
2. Detailed solutions
1. Solve the air blockage problem
Air blockage is the most common reason why the heater is not hot. When the upper part of the radiator is hot and the lower part is cold, it is likely that air has accumulated inside. The solution is simple:
• Locate the air release valve on the top of the radiator
• Use a screwdriver to slowly turn to deflate
• Close until water comes out
2. Treatment of insufficient water pressure
If the entire heating system is cold, it may be caused by insufficient water pressure. Check method:
• Check the water pressure gauge on your boiler or boiler
• Normal pressure should be between 1-2bar
• If it is lower than 1bar, water needs to be added and boosted
| water pressure status | Performance characteristics | Treatment method |
|---|---|---|
| Below 0.8bar | The heating is not hot at all | Hydrate immediately |
| 0.8-1bar | Heating temperature is low | Recommended to replenish water |
| 1-2 bar | normal working pressure | No processing required |
| higher than 2.5bar | Safety valve may drain water | Need to relieve pressure |
3. Pipeline blockage treatment
If only part of the radiator is not hot, the pipes may be clogged. Solution:
• Turn off other radiators and rinse the non-hot radiators separately
• Use professional cleaning agents for cycle cleaning
• Severe blockage requires professional treatment
4. System imbalance adjustment
Lack of heat from the remote radiator is usually caused by a hydraulic imbalance in the system. Solution:
• Adjust the valve opening of each radiator
• Close the radiator valves closer to the heat source.
• Open the radiator valve further away from the heat source wider.
3. Preventive measures
To avoid the problem of the radiator not being hot, it is recommended to take the following precautions:
• Vent the system before the heating season
• Regularly check water pressure status
• System cleaning every 2-3 years
• Do not tamper with the heating system
4. Professional service suggestions
If the heater is still not hot after taking care of it yourself, it is recommended to contact a professional heating service person. According to network-wide data, professional service response times are as follows:
| Service type | average response time | reference price |
|---|---|---|
| Simple repair | Within 24 hours | 100-300 yuan |
| System cleaning | Reservation required | 300-800 yuan |
| Parts replacement | 1-3 days | Depends on part |
Through the above analysis and solutions, we hope to help you quickly solve the problem of not heating your heater and spend a warm winter.
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