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How To Eliminate Common Electrical Faults In Fans

- Aug 18, 2018 -

Can start, the sound is abnormal, the switch trips after running for a while:


1. The grid capacity is insufficient and the voltage is low;

2. The line is leaking;

3. The wiring is unreliable. After running for a period of time, the wire is broken due to heat;

4. The motor wiring is wrong, and the Y connection method is connected to the △ connection method (generally, the motor including 4KW below 4KW is Y connection method, and the connection above 4KW is △ connection method);

5. The high-speed and low-speed wiring connection of the two-speed fan motor is wrong. The control box is not designed and produced according to the principle of △/YY (or Y/YY), which causes the control principle to be wrong.