The water pump is connected with the motor and pump as a whole, the pivot bearing of the motor rotor is a pump bearing, which is a rigid power transmission to make the pump impeller rotating work pressure reducing valve. Between the pump impeller and the vortex shell only 0.10 0.22 mm gap, debris sand easycards dead impeller, the motor rotor cannot rotate and failure. From the repair pump failure analysis of the impeller due to the death of the damaged motor rate accounted for more than 80% of the motor. When the power switch as found in the motor does not turn, should turn off the power in time, when the motor is working is to inductively generate a rotating magnetic field, within a short period of time the motor will not damage. Can use a screwdriver to remove the motor rear cover, with a hand or so to rotate the fan blade straight to the back cover to be flexible.
