2. The heating system pipeline is blocked: the heating system pipeline is blocked, and the radiator is naturally not hot or partially not hot. When this kind of fault occurs, we should judge the blocking point, then disconnect the pipeline, remove the dirt in the pipeline or replace the pipeline section.
The supply and return pipe of the heating system are just connected with the supply and return pipe of the whole building, or all of them are on the supply (return) water pipes, which can not form a normal thermal cycle line, which may be the reason why the radiator is not hot. At this time, it is necessary to understand the thermal circulation system and pipeline laying of the whole building, and carefully check and correct the wrong pipeline.
Extended data:
Precautions:
1. When the radiator is not hot locally, it is necessary to use the exhaust valve, and open the exhaust valve to release gas until it is exhausted. When water overflows, close the drain valve.
2. When using the radiator, you can turn it off or turn it down in an empty room. But if you turn off the radiator for a long time, you should pay attention to antifreeze and drain all the water in the radiator if necessary.
3. If the housing area is large, there are many rooms, and the population is small, the radiator valve in the unoccupied or low-frequency room can be completely closed or turned down, which is equivalent to reducing the heating area, not only saving energy, but also accelerating the heating of the normal use space and reducing the gas consumption.