Single-phase electric pump common fault analysis
Date:12-08-23 times：A, power supply voltage is normal, electric pump insulation performance is good, but why after electrify electric pump don't start? (symptoms: electric pump power on after the current sound or completely no noise and no signs start)
1, power supply connection midway appear open state,
2 and the Lord a winding or auxiliary winding open, followed by poor contact;
3, capacitor or carry switch contact open, make auxiliary winding can't live work;
4, starting capacitor connection open or internal break;
5, pump cavity internal foreign body card anyway impeller peripheral rust sticky die,
6, motor winding abnormal or electric pump appear among them parts accidental damage.
Second, the power supply voltage normal, after electrify electric pump start-up difficulties, and a buzz and vibration sense, current keep in a certain value does not fall on. (symptoms: electric pump start slowly