Normally working motors are somewhat hot. Especially in the case of frequent switching. Therefore, slight motor heating is no problem. If you touch it,Obviously higher than normal body temperature, and after the valve is in a stagnant state for a few minutes, the temperature does not drop, then this is abnormal, and we need to resolve it as soon as possible.

1. Find the reason: The reason why the motor is abnormally hot or hot is because the motor is in an active state for a long time and cannot be effectively cooled. Therefore, when we find that the motor is hot, we can use an electric pen to test whether the motor has a current. If there is a current, it means that the motor is working. This is the reason that the motor is hot.

2. After confirming that the motor is always working, the next step is to find the cause of the problem and what caused the motor to not stop working. Electric valves generally have mechanical and electronic double limit. Under normal circumstances, the electronic limit will first lock the main position. The mechanical limit plays an auxiliary role.

3. We need to first determine whether there is any debris in the medium in the pipeline, and whether the valve is not a full-flow seal structure. When the valve is fully open, the valve plate is still in the pipeline. If weeds, sticks, etc. in the medium get stuck in the valve plate. If the valve cannot be moved to the fully open position, then the electronic limit cannot stop the motor and the motor will be hot.

4. If it is confirmed that the medium is free of impurities, it is most likely caused by the mismatch between the mechanical limit and the electronic limit. Generally, after the motor stops working under the interference of the electronic limit, there is still some distance from the mechanical limit. If the electronic limit fails, the valve will be locked at the mechanical limit and the motor will continue to work. Causes fever. At this time, it is necessary to open the cover and check whether the stopper of the micro switch responsible for the electronic limit is slipping or deviates from the original debugging position. Adjusting it to the normal position will solve the problem.

5. There is another reason that the motor will heat up: The torque of the electric actuator is too small, which causes the motor to work overload. This requires a larger torque motor to solve the problem.