Common reasons for the cooling of the hot and return water pipes of the floor heating water pipes: You can check the pipeline problems of the floor heating to see if there is an air blockage in the trachea. The reason for the cold water pipes may also be that after last year's heating, the drainage was not completely drained. Because when the drainage is not complete for a long time, it is easy to cause the flow to decrease, the flow of water is not smooth, the heat radiation value is reduced, and the pipe network is blocked. The cooling of the return water pipe does not rule out the problem of construction. If the workers laying the floor heating have construction defects, the pipeline will be bent and flattened, resulting in poor water flow and increased resistance. In addition, the reason may also be that the geothermal pipe has not been cleaned all the year round. If it is not cleaned for a long time, some dirt will adhere to the pipe wall and cause blockage. The reason why the floor heating water inlet pipe is hot and the water pipe is cold is often ignored: the first is the impurities in the water pipe, and the impurities in the water pipe must be discharged at the beginning of heating. Many people find that some filthy liquids will be excluded when debugging the floor heating and exhaust, but they don't care. In fact, the filthy liquids that are excluded are those impurities that contain a large amount of impurities, which are all produced by fine sand or corrosion of the pipes. When they accumulate in the pipes, they will affect the hot water circulation of the heating system. The reverse connection of the supply and return water pipes is also the reason why we often ignore the hot and return water pipes of the test tubes. The reverse connection of the supply and return water pipes will cause hot water and cold water to mix together. In this case, you should seek professional repairs.
