What should I do if the radiator at home is not hot?
As winter approaches, radiators that do not heat up have become a common problem faced by many families. This article will analyze the reasons why your radiator is not hot and provide detailed solutions to help you quickly restore a warm and comfortable home environment.
1. Common reasons why the radiator is not hot

There are many reasons why a radiator may not heat up. Here are some common problems:
| Reason | Description |
|---|---|
| Air blockage | Air accumulates in the radiator, blocking hot water circulation. |
| Insufficient water pressure | The water pressure in the heating system is too low, causing the hot water to flow improperly. |
| clogged pipes | Sediments or impurities in the pipes block the flow of hot water. |
| Valve is not open | The water inlet or return valve of the radiator is not fully opened. |
| Radiator aging | The service life of the radiator is too long and the heat dissipation efficiency decreases. |
2. How to solve the problem that the radiator is not hot
For different reasons, the following measures can be taken:
| question | Solution |
|---|---|
| Air blockage | Use the exhaust valve to deflate until water comes out. |
| Insufficient water pressure | Check the water pressure in the heating system and add it to the normal range (usually 1-2 bar). |
| clogged pipes | Contact a professional to clean the pipes or replace the clogged section. |
| Valve is not open | Check and fully open the water inlet and return valves. |
| Radiator aging | Consider replacing your radiator with a new one and choose an energy-efficient model. |
3. Daily maintenance suggestions
In order to avoid the problem of the radiator not being hot, routine maintenance is very important:
1.Regular exhaust:Before the start of the heating season every year, the radiator should be vented.
2.Check water pressure:Check the heating system water pressure once a month to keep it within the normal range.
3.Cleaning and maintenance:Wipe the surface of the radiator regularly with a soft cloth to avoid dust accumulation that affects heat dissipation.
4.Avoid occlusion:Do not place large furniture or clothing in front of the radiator to ensure heat dissipation.
4. Professional maintenance timing
It is recommended to contact professional maintenance personnel when the following situations occur:
| situation | Processing method |
|---|---|
| Radiator leaks | Close the valve immediately and contact maintenance |
| Multiple sets of radiators are not hot | It may be a system problem that requires professional inspection |
| Abnormal noise from radiator | It may be an internal structural problem that needs to be repaired |
5. Suggestions for purchasing radiators
If you need to replace the radiator, you can refer to the following purchasing points:
| Considerations | Suggestions |
|---|---|
| Material | Steel radiator has good heat dissipation, copper-aluminum composite is corrosion-resistant |
| Size | Choose the appropriate cooling area according to the room area |
| brand | Choose well-known brands to ensure quality and after-sales service |
| Energy saving | Choose products with high energy efficiency ratings |
Through the above analysis and solutions, I believe you can effectively solve the problem of the radiator not being hot. In case of complicated situations, it is recommended to contact professional heating maintenance personnel in time to ensure safe and reliable heating in winter.
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