Common faults and troubleshooting methods of water-heating blanket mattress water pump:

1. The water pump cannot start:

- Check whether the power cord is connected properly and whether the fuse is burned.

- Check whether the switch and control device are working properly.

- Check whether the motor is burned or the rotor is stuck.

2. The water pump is running but there is no water flow:

- Check whether the inlet and outlet pipes are blocked or leaking.

- Check whether there are impurities blocking the inside of the water pump.

- Check whether the water pump impeller is damaged or stuck.

3. The water pump is noisy:

- Check whether the water pump is installed firmly and whether it resonates.

- Check whether the bearings, impellers, etc. are worn or damaged.

- Check whether the working pressure of the water pump is out of range.

4. The water pump is leaking:

- Check whether the seals such as mechanical seals and O-rings are damaged.

- Check whether the water pump housing and pipe thread connections are well sealed.

- Check if there are cracks or corrosion inside the pump.

5. The pump power is too large:

- Check if the pipe resistance is too large.

- Check if the system pressure is much greater than the pump head.

- Adjust the system parameters or choose a suitable pump model.

When troubleshooting, check each part systematically. If necessary, disassemble the pump for inspection and repair. If the problem cannot be solved, contact a professional maintenance person. I hope this information is helpful to you.