What is the reason why the water in the water heater is not hot and how to solve it?

1. First of all, it may be caused by scaling in the copper tube of the heat exchanger or carbon accumulation in the heat exchanger, so it is necessary to clean up the dirt. It is also possible that the computer board is broken and needs to be repaired. 3. If there is scale in the gas filter screen and pressure reducing valve pipeline, it will also lead to this phenomenon, and it is necessary to clean up the scale. 4. When the water in the water heater is not hot, there may be something wrong with the heating rod or the circuit, and the circuit needs to be repaired. The suggested solution is: 1. If there is scale in the copper tube of the heat exchanger, it is recommended to clean the scale of the water heater regularly, because when the scale thickens to a certain extent, it will not only prolong the heating time, but also cause certain harm to the inner container, and the water is not hot or the water output is reduced. 2. When the computer board of the water heater fails, you must contact professional maintenance personnel for maintenance. 3. There is scale on the gas filter screen and pressure reducing valve pipeline of the water heater. It is also necessary to clean the scale in the filter screen and pressure reducing valve to solve the phenomenon that the water in the water heater is not hot. 4. When there is a problem with the heating rod or circuit, cut off the power supply first, and then contact professional maintenance personnel for on-site inspection and timely maintenance. Do not disassemble the water heater by yourself to avoid electric shock or other injuries.