Water heater water inlet and outlet path temperature monitoring mechanism

The utility model discloses a water heater water inlet and outlet path temperature monitoring mechanism which comprises a shell, a water path and a PCB (Printed Circuit Board), the water path is arranged on the shell, a threaded hole is formed in the shell, a connecting hole is formed in the PCB, the PCB penetrates through the connecting hole through a bolt and is connected to the shell, and the PCB is connected to the shell through the threaded hole. The threaded hole is formed in the portion, on the outer side of the water way, of the shell, and a temperature sensor is arranged on the outerside of the connecting hole in the PCB. The temperature sensor is directly connected to the PCB, so that the arrangement of a flat cable is omitted, the whole structure is cleaner and simpler, and meanwhile, the cost is reduced; the threaded hole is formed in the shell on the outer side of the water path, after the bolt is matched with the threaded hole, the bolt is close to the water path, the temperature of the water pa