   In the use of WFB self-controlled seal-free self-priming pump may encounter the pump can not start the case, then to encounter this situation, we know where the reason is? And how to solve? The following is about WFB self-controlled seal-free self-priming pump can not start the cause and solution introduction.
   First, the reason
   1. Some sensor bad contact;
   2. Sensor, the lower limit or upper and lower installation upside down;
   3. The motor or fuse is damaged;
   4 no liquid in the tank, the sensor does not work.
   Second, the solution
   1. Recover the sensor in good contact;
   2. Correctly install the sensor;
   Repair motor or fuse
   4. Check the pool liquid situation.
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