In this cold winter, the floor heating mode is already necessary for the heating of many families. However, many people may have warm water separator return pipes when the floor is warmed up . What is the reason why the backwater pipe of the warm water separator is not hot ? What should be done if the backwater pipe of the warm water separator is not hot ? The following let Xiaobian answer questions for everyone. 
Warm water diverter return pipe is not hot, how to do warm water diverter return pipe is not hot
1. The pipeline pressure is not enough
Reason: Some homes may be because the floors are too high or at the end of the district heating, so heating is not ideal.
Solution: The factor water needs certain pressure in the floor heating pipeline, and if the pressure is insufficient, it will not happen. At this time, it is necessary to find a floor heating company or a related property to solve the problem. They generally use the installation of a circulating pump to increase the circulation of hot water supply to achieve the desired heating effect.
2. There is gas in the pipeline
Cause: The main bar of the floor heating is hot, but the return bar is not hot. It may be because there is a gas in the pipe. Therefore, hot water cannot enter the circuit and cannot be circulated.
Solution: If it is the above situation, you can first close the return valve, and then manually open the floor heating valve to drain. At this time, all valves on the water must be closed first. Then go one by one to open the exhaust. There may be water overflow at this time, remember to use a small basin to receive water. 
3. The filter is clogged
Cause: The main water supply bar is not hot. It may also be because the water supply is too dirty, causing the filter to clog and preventing it from circulating properly.
Solution: If it is the above reason, use a live spanner to open the filter, clean the filter inside, install it from the new installation, or you can find professional personnel to clean it.
4. Long-term warmth does not wash
Cause: The maintenance of the floor heating equipment is not timely or not in place. It will also cause the floor heating to be not warm.
Solution: In general, a floor heating pipe will be cleaned once every three to five years, depending on the circumstances. Of course, it is best to find a professional floor heating company to perform some maintenance on the floor heating equipment before the annual heating.
5. Loop uneven
Reason: If the heating effect of other users in the same community is good, but the effect of their own home is not good, then it may be caused by uneven heating construction circuit.
Solution: Use a small valve on the floor water separator to adjust the circulation of each circuit, so that it can be evenly cycled to achieve the desired heating effect. 
6. The valve is not open
The reason: There is hot water in the floor heating pipe, and the inlet pipe is hot, but the return pipe is not hot. This is probably caused by the main valve not opening.
Solution: Investigate the main heating valve and the main valve on the manifold to see if any valve is in the closed state. If it is open, you can solve the problem that the warm water return pipe is not hot.
7. The water is not fully discharged at the end of the heating period
Reason: Some users do not completely discharge the boiler pipe water in the geothermal pipe network after the heating period is over. The boiler pipeline water contains a lot of slime and impurities, long-term scaling does not clear will result in reduced flow, poor water flow.
Solution: After the heating period ends every year, the boiler pipe water in the geothermal pipe network shall be discharged in a timely manner.
8. Geothermal construction issues
Reasons: The construction personnel may not have received professional training, the construction is not standardized, and the piping will appear dead bent, flattened, etc., resulting in poor water flow and increased resistance.
Solution: Carefully clean up the tubes and keep them clean. 
Editor's summary: The above is the introduction of Xiao Bian's reason for the non-heating of the water return pipe of the floor heating manifold , and how the water return pipe of the floor heating water separator is not hot . After reading this article, everyone is not hot for the return pipe of the floor heating manifold. The reasons and various solutions should all have been more fully understood.
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